Skip to contentSkip to main content

DIAMO ELITE — Certified Loose Lab-Grown Diamonds.

IGI-certified lab-grown diamonds — cut, graded and delivered worldwide. Every stone traceable to a lab report, insured door to door, ready to ship.

Free insured shipping worldwide · until 31 August

DIAMO ELITE — investment-grade pear-cut lab-grown diamond held between fingertips in cinematic light

Campaign · 2026

Certified Brilliance

IGI Certified
Now accepting cryptoBTC · ETH · USDT · USDC · Card · Bank wire · SEPA

Shop by shape

Pick your silhouette.

All →
Transparent pricing

Clear tiers. No hidden costs.

Prices are shown for round F/VS1 stones — the sweet spot for brilliance and value. Fancy shapes and other 4C combinations move the final quote up or down.

Bulk pricing & quick actions

Bulk pricing applies automatically from 10 ct total order weight — €340/ct for stones up to 3 ct and €380/ct for stones of 3 ct and above. Orders of 100 ct or more are priced individually — contact the DIAMO ELITE desk for a written quote. Minimum stone weight is 0.50 ct. Every price includes an IGI certificate and free insured worldwide shipping.

1 ct

0.90 – 1.09 ct

from

€350

€350/ct

  • IGI certificate (laser-inscribed girdle)
  • Free insured worldwide shipping
  • 14-day loupe-in-hand returns
  • Secure presentation packaging
  • Personal sourcing support
Browse 1 ct stones

1.5 ct

1.40 – 1.69 ct

from

€525

€350/ct

  • IGI certificate (laser-inscribed girdle)
  • Free insured worldwide shipping
  • 14-day loupe-in-hand returns
  • Secure presentation packaging
  • Personal sourcing support
Browse 1.5 ct stones
Most popular

2 ct

1.90 – 2.19 ct

from

€700

€350/ct

  • IGI certificate (laser-inscribed girdle)
  • Free insured worldwide shipping
  • 14-day loupe-in-hand returns
  • Secure presentation packaging
  • Personal sourcing support
Browse 2 ct stones

3 ct

2.80 – 3.20 ct

from

€1,200

€400/ct

Grown to order · up to 3 business days preparation + 2–3 weeks delivery

  • IGI certificate (laser-inscribed girdle)
  • Free insured worldwide shipping
  • 14-day loupe-in-hand returns
  • Secure presentation packaging
  • Personal sourcing support
Request 3 ct quote
Melee Diamonds · Now Available

Loose melee, sold by the parcel

Calibrated lab-grown melee in three sizes and three colours — colourless, Fancy Vivid Yellow and Fancy Vivid Pink. Sold in 100-piece parcels; add straight to cart or request a bespoke quote for larger volumes. All parcels ship uncertified as standard; IGI parcel certification is available on request for an additional charge.

Full melee guide & sizes
Price per 100-piece parcel
3 sizes × 3 colours
0.10 ct
Signature Melee
  • Colourless
    €1,300
    /100 pcs
  • Yellow
    €1,300
    /100 pcs
  • Pink
    €1,300
    /100 pcs
0.03 ct
Pavé Melee
  • Colourless
    €800
    /100 pcs
  • Yellow
    €800
    /100 pcs
  • Pink
    €800
    /100 pcs
0.02 ct
Micro-Pavé Melee
  • Colourless
    €700
    /100 pcs
  • Yellow
    €700
    /100 pcs
  • Pink
    €700
    /100 pcs
  • Colourless D–F lab-grown melee diamonds, 0.10 ct on black velvet
    Colourless
    0.10 ct · 100 pcs

    Signature Melee

    Our largest melee — a single stone reads on the hand. Ideal for solitaire accents and centre-forward pavé halos.

    Small melee diamonds are sold only in 100-piece parcels — not as single stones.

    Colour
    Parcels · 100 pcs each
    1= 100 pcs
    Per parcel
    €1,300
    Total
    €1,300
  • Colourless D–F lab-grown melee diamonds, 0.03 ct on black velvet
    Colourless
    0.03 ct · 100 pcs

    Pavé Melee

    The jeweller's workhorse. Calibrated pavé for eternity bands, halo shoulders and micro-set couture pieces.

    Small melee diamonds are sold only in 100-piece parcels — not as single stones.

    Colour
    Parcels · 100 pcs each
    1= 100 pcs
    Per parcel
    €800
    Total
    €800
  • Colourless D–F lab-grown melee diamonds, 0.02 ct on black velvet
    Colourless
    0.02 ct · 100 pcs

    Micro-Pavé Melee

    Fine micro-pavé for delicate work — bezels, prong tips, inlays and bespoke pet-jewellery commissions.

    Small melee diamonds are sold only in 100-piece parcels — not as single stones.

    Colour
    Parcels · 100 pcs each
    1= 100 pcs
    Per parcel
    €700
    Total
    €700

Minimum order 100 pcs per parcel · up to 10 parcels (1000 pcs) per checkout. Larger volumes are negotiated individually — see below.

Trade & Volume

Larger parcels — priced individually

Orders above the 100-piece minimum are quoted on request. Send us the size, colour and quantity you need and we'll build a bespoke quote with tiered per-carat pricing, matched calibration and optional IGI parcel documentation.

Request a bespoke quote →
Made for
  • Engagement & eternity bands
  • Halo & pavé settings
  • Watch dials & bezels
  • Ear climbers & tennis chains
  • Bespoke couture accents
  • Pet jewellery & collars
Instant quote

Price by carat. Nothing else.

Drag the slider or type a carat weight. The price updates instantly. Colour, clarity, cut and shape do not change the price — only carat weight matters.

Up to 3 ct
€350/ct
From 3 ct
€400/ct
Bulk · 10 ct + · up to 3 ct
€340/ct
Bulk · 10 ct + · from 3 ct
€380/ct
100 ct + · Negotiated
Contact us for a written quote

All prices include an IGI certificate and free insured worldwide shipping. Minimum stone weight: 0.50 ct.

Carat weight

Drag the slider or use ← → arrow keys, Page Up/Down for larger jumps, Home/End for min/max.

Current tier: under 3 carats tier — €350 per carat. The €350 per carat rate applies under 3 carats; the €400 per carat rate applies from 3 carats and above.
0.50 ct5.00 ct

1.00 ct total · Standard pricing

Quick carat presets
Estimated price
€350
€350/ct × 1.00 ct
Our sourcing standard

D–F colour. VS1+ clarity.
Excellent cut, always.

We don't stock everything — we stock what matters. Every DIAMO ELITE stone is sourced to the market's collector grade: colourless white, eye-clean and above, and — most importantly — cut to release maximum light.

Colour

Colourless

D – F

The top three grades on GIA's scale. Truly colourless white — no warm tint under any lighting.

D
E
F
G
H
I
J
K
DIAMO ELITENot stocked

Clarity

Eye-clean+

VS1 & above

Inclusions invisible to the naked eye — and typically hard to spot under 10× loupe. The sweet spot of purity and value.

FL
IF
VVS1
VVS2
VS1
VS2
SI1
SI2
DIAMO ELITENot stocked

Cut · the 4C that matters most

#1 factor

Cut is where a diamond earns its sparkle.

Two stones with identical colour, clarity and carat can look completely different in the light — and the reason is always cut. Proportions, symmetry and polish decide how much of the light entering the diamond comes back to your eye as brilliance and fire.

Excellent

Very Good

Good

Fair

We source Excellent / Ideal only — no compromises.

Light return
~93%
Symmetry
Ex
Polish
Ex

Why the strict filter? Below D–F / VS1 the stone still grades well on paper, but the difference is visible in daily wear — a hint of body colour, or a pinpoint catching the eye under a loupe. Below Excellent cut, it's a diamond that never quite comes alive.

See our vault
Price comparison

The same diamond. Up to 40% less.

We compared identical round F / VS1 lab-grown diamonds against the average retail price of a typical Baltic online jeweller. Same 4C spec, same IGI grading — different price tag.

1 ct

Round · F · VS1

€1,020

€350

EU VAT included. Final price confirmed at checkout.

€67066%

1.5 ct

Round · F · VS1

€1,400

€525

EU VAT included. Final price confirmed at checkout.

€87563%

2 ct

Round · F · VS1

€1,630

€700

EU VAT included. Final price confirmed at checkout.

€93057%

3 ct

Round · F · VS1

€2,770

€1,200

EU VAT included. Final price confirmed at checkout.

€1,57057%

Lower price isn't the whole story — it's what comes with it.

We cut cost by sourcing directly from IGI-graded growers and shipping worldwide from a lean UK operation — not by cutting the things that protect your purchase. Every stone is certified, insured in transit, and returnable for 14 days after you inspect it in hand.

  • What you getUsThem
  • IGI / GIA certificate on every stone
  • Free insured worldwide shipping
  • 14-day loupe-in-hand returns
  • Full English site + EU VAT handled
  • 3D / 360° stone visualisation

How these numbers are calculated

DIAMO ELITE pricing

2026 wholesale price sheet + cut / shape / certification coefficients, converted USD → EUR and marked up to retail.

Details

Our €/ct is derived from a 2026 wholesale price sheet for IGI-graded lab-grown rounds at 0.5 / 1 / 1.5 / 2 / 3 ct anchors, interpolated log-linearly on carat. We then apply industry-standard coefficients, convert USD → EUR at a fixed rate, and add a lean retail markup. EU VAT is added at checkout.

Calculation steps

  1. Look up wholesale USD at the nearest carat anchor for chosen colour + clarity.
  2. Log-linear interpolation on carat between two anchors.
  3. Multiply by cut × shape × certification coefficients.
  4. Convert USD → EUR at a fixed rate.
  5. Apply retail markup; EU VAT is added at checkout.

Coefficients: Excellent ×1.2 · Very Good ×1.1 · Good ×1.0 · IGI ×1.0 · GIA ×1.05 · Round ×1.0 · Oval ×0.85 · Cushion / Emerald ×0.80.

Natural (mined) benchmark

Interpolated from public retail price indexes for round D–F / VS1+ / Excellent-cut natural diamonds.

Details

We use log-linear scaling between anchor carat weights because diamond prices rise non-linearly with size. The result is rounded to the nearest €50 and is an indicative retail benchmark, not a binding quote.

Data sources

Competitor average

Rounded mean of public list prices for round F/VS1 lab-grown diamonds at major online jewellers.

Details

We sample in-stock stones across the four most popular carat weights (1 ct, 1.5 ct, 2 ct, 3 ct), exclude outliers and settings, and update the figure monthly. Prices include VAT where shown publicly.

Data sources

  • Brilliant Earth

    Major lab-grown diamond retailer — round F/VS1 listing prices.

  • James Allen

    Public catalog of IGI-graded lab-created diamonds.

  • Clean Origin

    Lab-grown diamond listings used for competitive price sampling.

Interactive example

Try the calculation yourself

Pick a spec and watch the price move through every step of the engine.

  1. 01Wholesale anchors for F/VS10.5 ct → $175 · 1.0 ct → $350
  2. 02Log-linear interpolation to 1.00 ct$350
  3. 03× cut × shape × certification= $350×1.00 · ×1.00 · ×1.00 = ×1.000
  4. 04Convert USD → EUR (×1)€350
  5. 05Retail markup ×1€350

Retail per stone

€350

Per carat

€350 /ct

Illustrative only — EU VAT is added at checkout and the final DIAMO ELITE quote is confirmed in writing.

FAQ

What filters are used for the competitor average?

We sample round brilliant lab-grown diamonds with F colour and VS1 clarity, in the 1–3 ct range, from major online jewellers. The result is rounded to the nearest price step and updated monthly.

  • Carat range: 1 ct – 3 ct
  • Colour / clarity: F / VS1
  • Shape: round brilliant
  • Stones only — settings and outliers excluded
  • Rounded to the nearest step
Why are these numbers indicative?

Diamond prices move with currency rates, supply and exact cut quality. Our calculator gives a transparent benchmark; the final DIAMO ELITE quote is always confirmed in writing before payment.

All figures are indicative and for comparison only. Final DIAMO ELITE quotes are confirmed in writing before payment. Market rates, currency, cut quality and exact 4C spec can move prices on all sides.

Value, not discount

Same budget.
Bigger diamond.

A DIAMO ELITE stone isn't cheap — it's a different value structure. Same D–F colour, same VS1+ clarity, same Excellent cut, same IGI grading as a mined diamond. The saving isn't in quality — it's in the origin. Which means the money can move into carat weight, setting quality, or a stone you'd never otherwise touch.

The headline swap

0.5 ct natural diamond ring on a finger

Natural · 0.5 ct

2 ct DIAMO ELITE lab-grown diamond ring on a finger

DIAMO ELITE · 2 ct

Same budget · shown at matched scale

NaturalDIAMO ELITE
0.5 ct2 ct
~5.1 mm~8.1 mm
Subtle / everydayStatement / engagement

A 2 ct lab-grown DIAMO ELITE ring costs about the same as a 0.5 ct natural.

Four times the presence on the finger. Identical grading paperwork. Same brilliance under the same light.

Natural budgetYou could wear

Natural · 0.5 ct

€1,900

×4.0

DIAMO ELITE · 2 ct

€700

Natural · 1 ct

€7,200

×3.5

DIAMO ELITE · 3.5 ct

€1,400

Natural · 1.5 ct

€15,500

×3.3

DIAMO ELITE · 5 ct

€2,000

Natural · 2 ct

€27,500

×3.5

DIAMO ELITE · 7 ct

€2,800

Natural prices are indicative D / VS1 / Excellent-cut round retail averages. All comparisons at matched 4C spec. Your final DIAMO ELITE quote is confirmed in writing before payment.

See what your budget unlocks
Marketplace snapshot

Same 4Cs. Same IGI paperwork.
A different pricing model.

Most European lab-diamond retailers price each stone individually — a markup for higher colour, another for higher clarity, another for fancy shapes, and a multi-fold premium the moment a stone turns vivid yellow, blue or pink. The catalogue below is a real snapshot of one such marketplace's live sale prices in November 2025, placed next to DIAMO ELITE's flat carat rate for the same stone size.

Colourless · D–F / VS+

0.85 ct · E / VVS2

Round · IGI

Marketplace

€330

€388/ct

DIAMO ELITE

€298

€350/ct

−10%

1.10 ct · E / VVS2

Round · IGI

Marketplace

€395

€359/ct

DIAMO ELITE

€385

€350/ct

−3%

1.04 ct · D / VVS2

Oval · IGI

Marketplace

€600

€577/ct

DIAMO ELITE

€364

€350/ct

−39%

1.65 ct · D / VS1

Pear · IGI

Marketplace

€800

€485/ct

DIAMO ELITE

€578

€350/ct

−28%

2.01 ct · F / VVS2

Round · IGI

Marketplace

€735

€366/ct

DIAMO ELITE

€703

€350/ct

−4%

3.08 ct · E / VS1

Round · IGI

Marketplace

€1,029

€334/ct

DIAMO ELITE

€1,232

€400/ct

+20%

Fancy colour — where the pricing model diverges most

2.04 ct · Fancy Vivid Yellow VS1

Radiant · IGI

Marketplace

€870

€426/ct

DIAMO ELITE

€714

€350/ct

−18%

1.03 ct · Fancy Vivid Blue

IGI

Marketplace

€890

€864/ct

DIAMO ELITE

€361

€350/ct

−59%

3.04 ct · Fancy Vivid Pink VS1

Emerald · IGI

Marketplace

€1,092

€359/ct

DIAMO ELITE

€1,216

€400/ct

+11%
Elsewhere a Fancy Vivid Yellow, Blue or Pink stone carries a 2–4× per-carat multiplier over its colourless equivalent. At DIAMO ELITE it does not — the rate is the same €350/ct (or €400/ct at 3 ct+), regardless of hue.

Per-stone 4C markups

Traditional retailers rebuild the price for every stone: colour ladder (D→J), clarity ladder (IF→SI2), cut grade, and shape scarcity. Two IGI-identical stones can differ by 40% on price alone.

Fancy-colour multipliers

Fancy Vivid Yellow, Blue and Pink lab diamonds are typically priced 2–4× per carat above colourless equivalents. Our rate is flat — the origin and process are the same.

What's bundled in

Our price already includes the IGI certificate and free fully insured worldwide shipping. No add-ons at checkout, no per-country handling fee, no certificate surcharge.

Marketplace prices are a public catalogue snapshot of loose IGI-graded lab-grown diamonds on sale at a European retailer in November 2025, rounded to the nearest euro. Every DIAMO ELITE stone ships with its own IGI certificate and free insured worldwide delivery. Minimum stone weight is 0.50 ct. Final quote is confirmed in writing before payment.

Mini-lesson · 4 minutes

How the industry actually
prices a diamond.

A traditional per-stone quote is a stack of multipliers — one for each of the 4Cs, then an entirely separate ladder for fancy colour. Below is that stack, built from a real €900/ct baseline (a 1 ct H / SI1 / Very Good IGI round) so you can see where each euro comes from.

Step 1 · Colour ladder

Moving from H (baseline) up to icy-white D adds roughly 60% to the per-carat rate — even though the visual difference under normal light is subtle.

GradeMultiplier€ / ct
H · Near-colourless×1.00€900
G · Near-colourless+×1.15€1,035
F · Colourless×1.30€1,170
E · Colourless+×1.45€1,305
D · Icy white×1.60€1,440

Step 2 · Clarity ladder

Going from an eye-clean SI1 to Internally Flawless roughly doubles the price of the same physical stone. Inclusions in VS and up are only visible under 10× magnification.

GradeMultiplier€ / ct
SI1 · Eye-clean×1.00€900
VS2 · Very slight×1.15€1,035
VS1 · Very slight+×1.28€1,152
VVS2 · Almost flawless×1.45€1,305
IF · Internally flawless×1.70€1,530

Step 3 · Cut grade

Cut is the only C the diamond cutter controls. A Triple Excellent / Ideal grade adds another ~25% on top of a Very Good stone of identical colour and clarity.

GradeMultiplier€ / ct
Good×0.90€810
Very Good×1.00€900
Excellent×1.15€1,035
Ideal / 3EX×1.25€1,125

Step 4 · Fancy-colour multiplier

This is where per-stone pricing really diverges. A Fancy Vivid Yellow costs ~2.8× the colourless equivalent, Fancy Vivid Blue ~3.4×, Fancy Vivid Pink ~3.8× — applied on top of the colour, clarity and cut stack above.

GradeMultiplier€ / ct
Colourless D–F · Baseline×1.00€900
Fancy Light Yellow×1.40€1,260
Fancy Intense Yellow×2.10€1,890
Fancy Vivid Yellow×2.80€2,520
Fancy Vivid Blue×3.40€3,060
Fancy Vivid Pink×3.80€3,420

Worked example · 1 ct D / VVS2 / Ideal round

Baseline (1 ct H / SI1 / VG)€900/ct
Colour D×1.60
Clarity VVS2×1.45
Cut Ideal / 3EX×1.25
Marketplace price€2,610
Same stone at DIAMO ELITE€350

You pay ~€2,260 less for identical IGI paperwork — the colour / clarity / cut rungs simply don't enter the price.

Worked example · 1 ct Fancy Vivid Yellow VS1

Colourless equivalent (F / VS1 / VG)€1,498/ct
Fancy Vivid Yellow multiplier×2.80
Marketplace price€4,194
Same stone at DIAMO ELITE€350

Origin is identical — the same CVD or HPHT reactor, the same IGI report format. The 2.8× hue premium is a pricing convention, not a manufacturing cost.

The DIAMO ELITE rule

One rate. €350/ct up to 3 ct, €400/ct from 3 ct. Colour, clarity, cut, shape and fancy hue don't move the number.

Source & methodologyShow assumptions
Language

Multipliers are illustrative, drawn from published Rapaport price sheet bands and IGI wholesale ladders (November 2025). Real quotes at other retailers will vary by stone, but the shape of per-stone pricing — colour + clarity + cut + fancy hue, stacked — is the industry norm.

Baseline stone

  • 1.00 ct round brilliant, IGI-certified lab-grown.
  • Colour H, clarity SI1, cut Very Good.
  • Reference per-carat rate: €900/ct — the median EU marketplace entry point in Nov 2025 for that spec.

Ladder multipliers (vs. the baseline)

  • Colour H→D: ×1.00, ×1.15, ×1.30, ×1.45, ×1.60.
  • Clarity SI1→IF: ×1.00, ×1.15, ×1.28, ×1.45, ×1.70.
  • Cut Good→Ideal/3EX: ×0.90, ×1.00, ×1.15, ×1.25.
  • Fancy hue vs. colourless: Light Yellow ×1.4, Intense Yellow ×2.1, Vivid Yellow ×2.8, Vivid Blue ×3.4, Vivid Pink ×3.8.

Worked example · 1 ct D / VVS2 / Ideal

€900 × 1.60 × 1.45 × 1.25 = €2,610

DIAMO ELITE flat rate for the same 1 ct stone: €350 — a fixed €350/ct up to 3 ct, regardless of colour, clarity or cut grade.

Worked example · 1 ct Fancy Vivid Yellow VS1

€900 × 1.30 (F) × 1.28 (VS1) = €1,498/ct
€1,498 × 2.80 (Vivid Yellow) = €4,194

The 2.8× hue premium is a pricing convention, not a manufacturing cost — the reactor, growth cycle and IGI report format are identical to a colourless stone.

Numbers round to the nearest euro. Marketplace price cross-checks are sampled from fashiongold.lt's public "special offer" listing (see the marketplace snapshot above) and from Rapaport-indexed EU retailers.

Compare two diamonds

Which C is
actually costing you?

Set two stones. The tool decomposes the marketplace price gap between them into the individual 4C and fancy-colour rungs, then shows what both stones would cost at DIAMO ELITE's flat rate.

Stone A
Stone B
Stone A61% here

Marketplace

€900

€900/ct

DIAMO ELITE

€350

€350/ct

Stone B87% here

Marketplace

€2,610

€2,610/ct

DIAMO ELITE

€350

€350/ct

What explains the marketplace gap

Δ €1,710

Stone B is dearer by €1,710 — the biggest driver is colour (H → D), a ×1.60 rung on that ladder.

Colour

H D

Ladder rung ×1.00 → ×1.60

+€540

Clarity

SI1 VVS2

Ladder rung ×1.00 → ×1.45

+€405

Cut

Very Good Ideal / 3EX

Ladder rung ×1.00 → ×1.25

+€225

Marketplace gap

+€1,710

DIAMO ELITE gap

+€0

Marketplace figures use illustrative Rapaport / IGI multipliers on a €900/ct baseline (1 ct H / SI1 / Very Good IGI round). They exist to show the shape of per-stone pricing, not to quote a specific retailer. DIAMO ELITE prices are live: flat €350/ct up to 3 ct, €400/ct from 3 ct, minimum 0.50 ct, IGI certificate and worldwide insured shipping included.

Interactive · Price lab

Move the sliders.
Watch the price rebuild.

Every rung on the 4C ladders — plus the fancy-colour multiplier — is a slider below. Drag any of them and the marketplace estimate recalculates in real time, next to what the same stone would cost at DIAMO ELITE's flat per-carat rate.

1.00 ct
0.30 ct1.00 ct2.00 ct3.00 ct5.00 ct
H
JIHGFED
VS1
SI2SI1VS2VS1VVS2VVS1IF
Excellent
GoodVery GoodExcellent3EX
None
NoneLight YIntense YVivid YVivid BVivid P

Marketplace estimate

Baseline (1 ct H / SI1 / VG)€900/ct
Colour · H×1.00
Clarity · VS1×1.28
Cut · Excellent×1.15
Carat weight× 1.00 ct
Per carat€1,325/ct
Total€1,325

DIAMO ELITE · Flat rate

Flat rate (up to 3 ct)€350/ct
Carat weight× 1.00 ct
Total€350

You save

€975(74% off marketplace)

Browse stones at this flat rate

Marketplace multipliers are illustrative, drawn from published Rapaport / IGI wholesale ladders (Nov 2025). Real quotes vary by individual stone — the ladder structure does not.

Savings calculator

Choose a carat. See what you save.

Pick a weight, shape and grade — we compare a DIAMO ELITE lab-grown diamond against a mined stone of the same D–F / VS1+ / Excellent-cut specification at indicative retail. Every euro on the right is the same stone on your hand for less.

Natural benchmarks reflect public retail averages for D colour, VS1 clarity, Excellent cut — not binding quotes. DIAMO ELITE prices are indicative and confirmed at checkout.

1.50ct
0.30 ct5.00 ct
Shape
Colour
Clarity
Mined equivalent
€15,500
DIAMO ELITE
€530

EU VAT included. Final price confirmed at checkout.

You save
€14,970(97% · 29.2× cheaper)
Browse 1.50 ct stones

How these numbers are calculated

DIAMO ELITE pricing

2026 wholesale price sheet + cut / shape / certification coefficients, converted USD → EUR and marked up to retail.

Details

Our €/ct is derived from a 2026 wholesale price sheet for IGI-graded lab-grown rounds at 0.5 / 1 / 1.5 / 2 / 3 ct anchors, interpolated log-linearly on carat. We then apply industry-standard coefficients, convert USD → EUR at a fixed rate, and add a lean retail markup. EU VAT is added at checkout.

Calculation steps

  1. Look up wholesale USD at the nearest carat anchor for chosen colour + clarity.
  2. Log-linear interpolation on carat between two anchors.
  3. Multiply by cut × shape × certification coefficients.
  4. Convert USD → EUR at a fixed rate.
  5. Apply retail markup; EU VAT is added at checkout.

Coefficients: Excellent ×1.2 · Very Good ×1.1 · Good ×1.0 · IGI ×1.0 · GIA ×1.05 · Round ×1.0 · Oval ×0.85 · Cushion / Emerald ×0.80.

Natural (mined) benchmark

Interpolated from public retail price indexes for round D–F / VS1+ / Excellent-cut natural diamonds.

Details

We use log-linear scaling between anchor carat weights because diamond prices rise non-linearly with size. The result is rounded to the nearest €50 and is an indicative retail benchmark, not a binding quote.

Data sources

Competitor average

Rounded mean of public list prices for round F/VS1 lab-grown diamonds at major online jewellers.

Details

We sample in-stock stones across the four most popular carat weights (1 ct, 1.5 ct, 2 ct, 3 ct), exclude outliers and settings, and update the figure monthly. Prices include VAT where shown publicly.

Data sources

  • Brilliant Earth

    Major lab-grown diamond retailer — round F/VS1 listing prices.

  • James Allen

    Public catalog of IGI-graded lab-created diamonds.

  • Clean Origin

    Lab-grown diamond listings used for competitive price sampling.

Interactive example

Try the calculation yourself

Pick a spec and watch the price move through every step of the engine.

  1. 01Wholesale anchors for F/VS10.5 ct → $175 · 1.0 ct → $350
  2. 02Log-linear interpolation to 1.00 ct$350
  3. 03× cut × shape × certification= $350×1.00 · ×1.00 · ×1.00 = ×1.000
  4. 04Convert USD → EUR (×1)€350
  5. 05Retail markup ×1€350

Retail per stone

€350

Per carat

€350 /ct

Illustrative only — EU VAT is added at checkout and the final DIAMO ELITE quote is confirmed in writing.

FAQ

What filters are used for the competitor average?

We sample round brilliant lab-grown diamonds with F colour and VS1 clarity, in the 1–3 ct range, from major online jewellers. The result is rounded to the nearest price step and updated monthly.

  • Carat range: 1 ct – 3 ct
  • Colour / clarity: F / VS1
  • Shape: round brilliant
  • Stones only — settings and outliers excluded
  • Rounded to the nearest step
Why are these numbers indicative?

Diamond prices move with currency rates, supply and exact cut quality. Our calculator gives a transparent benchmark; the final DIAMO ELITE quote is always confirmed in writing before payment.

All figures are indicative and for comparison only. Final DIAMO ELITE quotes are confirmed in writing before payment. Market rates, currency, cut quality and exact 4C spec can move prices on all sides.

Budget → carat

Same budget. Far bigger stone.

Set a budget, choose colour and clarity — we show the carat weight you can actually get in a mined diamond versus a DIAMO ELITE lab-grown stone of the same specification. Example: at €5,000 a natural D/VS1 stone is around 0.5 ct; lab-grown reaches roughly 2 ct.

Estimates use public retail averages for mined diamonds and DIAMO ELITE indicative pricing (Excellent-cut round, EU VAT included). Final prices are confirmed at checkout.

€5,000
€500€50,000
Colour
Clarity
Mined equivalent
0.81 ct
DIAMO ELITE
8.00 ct
Size uplift
9.9×bigger for the same price
Browse ~8.00 ct stones
Real examples

Same budget, visibly bigger stone.

Three side-by-side examples at the same D colour / VS1 clarity / Excellent-cut round grade. Diamond footprints are rendered proportional to their real millimetre diameter — this is exactly how they compare on the hand.

  1. €1,500
    D · VS1 · Excellent
    4.4× the carat weight

    A mined 0.4 ct sits below the tip of a pinky nail. At DIAMO ELITE the same €1,500 lands a full 1.75 ct — a stone that fully covers a solitaire setting.

  2. €3,500
    D · VS1 · Excellent
    4.8× the carat weight

    €3,500 on the natural market buys a modest 0.65 ct. The same budget with DIAMO ELITE brings home a statement 3.1 ct in the same D/VS1 grade.

  3. €7,500
    D · VS1 · Excellent
    5.1× the carat weight

    At €7,500 a mined stone barely clears one carat. DIAMO ELITE delivers a heirloom-class 4.85 ct — over five times the visible spread on the hand.

Diameters are calculated from standard round-brilliant proportions (industry-published mm/ct tables). Natural carat estimates use public retail averages for D/VS1/Excellent stones; DIAMO ELITE carat is what our current pricing delivers at each budget. Diamond image is illustrative — every DIAMO ELITE stone ships with its own IGI certificate.

Pricing FAQ

How we price, ship & protect your purchase

Common questions about certificates, delivery and returns — answered transparently.

Our price is determined only by carat weight. Stones up to 3 ct are priced at a flat €350 per carat; stones from 3 ct at €400 per carat. Colour, clarity, cut, shape and certificate do not change the price. Every stone ships with an IGI certificate and free insured worldwide shipping. The minimum stone weight we sell is 0.50 ct. The price shown includes EU VAT; the final quote is confirmed in writing before payment.
No. Only carat weight changes the price. A 1 ct D-colour round diamond costs the same as a 1 ct J-colour emerald diamond. Up to 3 ct the rate is €350/ct; from 3 ct the rate is €400/ct.
Yes. When your total order weight reaches 10 ct, bulk pricing applies: €340 per carat for stones up to 3 ct, and €380 per carat for stones of 3 ct and above. Orders of 100 ct or more are priced individually — please contact the DIAMO ELITE desk for a written quote.
0.50 ct. DIAMO ELITE does not sell smaller stones. Every diamond ships with an IGI certificate and free insured worldwide shipping regardless of size.
Yes. Every DIAMO ELITE price includes an IGI certificate and free fully insured worldwide shipping. There are no hidden certificate, handling or delivery fees.
Every DIAMO ELITE stone ships with an independent IGI (International Gemological Institute) certificate. The report includes the 4Cs, proportions, fluorescence and a unique report number that is laser-inscribed on the girdle whenever the size allows.
Yes. IGI is a third-party laboratory with no ownership tie to DIAMO ELITE. The certificate is issued before the stone reaches us and is matched to the diamond by its report number and laser inscription.
Orders are prepared within 1–3 business days and delivered in 2–5 business days for most EU destinations. Worldwide orders typically arrive within 14–21 business days depending on customs processing in the destination country.
Yes. We offer free, fully insured worldwide shipping on every order. Each parcel is tracked and requires a signature on delivery. Customs paperwork is handled and the shipment is declared at its insured value.
You have 14 days from delivery to inspect the stone in hand. If it is not the one, contact us to start a return. The stone must be unworn and returned with its original certificate and packaging. Refunds are processed within 5–7 business days after the stone is received and inspected.
The price shown includes EU VAT and free insured shipping. There are no hidden handling or certificate fees. For non-EU destinations, any local import duties or taxes are the responsibility of the buyer and are not included in our price.
In their words

Real reviews from real clients.

New · Trade-in program

Trade up.
Never trade off.

Give the jewellery you no longer wear a second life — as a bigger, brighter, IGI-certified lab-grown diamond. Send us your old piece; we'll return a written trade-in credit and apply it toward anything in the DIAMO ELITE vault.

  • Up to 70% credit on trade-in value
  • Insured, tracked inbound shipping
  • Any brand, any era accepted
  • Written valuation in 48 hours

How it works

3 steps

  1. 01

    Tell us what you have

    Send a few photos and any certificates or receipts you kept. Rings, earrings, tennis lines — mined or lab-grown, gold or platinum.

  2. 02

    Free, no-obligation valuation

    Our gemologist reviews the piece and returns a written trade-in credit within 48 hours. No pressure, no lock-in.

  3. 03

    Choose your upgrade

    Apply the credit to any DIAMO ELITE stone or bespoke setting. We handle secure inbound shipping and IGI certification of your new piece.

Not sure it qualifies? Send a photo anyway — we assess vintage, mined and lab-grown pieces in gold, platinum or palladium settings.

Request a trade-in valuation

Tell us what you have. We'll reply within one business day.

Delivery method
Photos (optional)0 of 5 added

Up to 5 photos, JPG / PNG / WEBP / GIF / HEIC, 5 MB each.

You can add more notes on the next page.

Trade-in FAQ

Clear rules, no surprises

How we value your piece, what we accept and exactly how the 48-hour written offer works.

Our gemologist assesses the centre stone (4Cs and shape), any side stones, the metal type and weight, and — for branded or signed pieces — the maker and current secondary-market demand. Mined diamonds are benchmarked against RapNet indexes; lab-grown against our monthly wholesale panel; gold and platinum against the daily LBMA fix. You receive a written breakdown of every line item.
Trade-in credit is typically 50–70% of the appraised market value, depending on category. Loose certified diamonds and investment-grade stones sit at the top of that range; branded jewellery, watches and finished mountings sit lower to cover refurbishment or resale risk. The credit is applied against any DIAMO ELITE stone or bespoke commission.
We accept diamonds from 0.30 ct upwards (mined or lab-grown, any era), gold jewellery from 9k and higher, platinum and signed pieces from recognised houses. We do not accept silver, costume jewellery, gemstones with heavy treatments (glass filling, laser drilling), stones with major chips or cracks visible without magnification, or items without provable ownership. Damaged mountings are fine — we credit the stones and recover the metal.
Hour 0: you submit photos and details through the trade-in form. Hour 0–4 (business hours): our desk confirms receipt and asks any clarifying questions. Hour 4–24: the gemologist reviews photos, certificates and reference sales. Hour 24–48: you receive a written credit offer with a full valuation breakdown, valid for 14 days. The 48-hour clock covers only business hours (Mon–Fri, 09:00–17:00 UK); pieces sent in physically are re-checked in-house within 2 further business days before credit is finalised.
For pieces valued above €1,500 we arrange and pay for an insured FedEx or DHL pickup, covered up to the appraised value. Below that threshold, you can either ship it yourself (we reimburse the insured shipping cost against a receipt) or drop it off at our London office by appointment. Every parcel is signed for and photographed on arrival.
You are under no obligation. If you decline the credit offer, we return the piece to you within 3 business days, fully insured at our expense, in the same condition it arrived. The written valuation is yours to keep.
Any original certificate (IGI, GIA, HRD), the original invoice or receipt, service records for watches, and — if applicable — a proof of ownership such as an insurance schedule. Missing paperwork is not a blocker: unsertified stones are re-graded in-house at no cost, though this can add 1–2 days to the timeline.
  • Aether 0.52 — 0.52 ct round cut lab-grown diamondIGI

    Aether 0.52

    round · 0.52ct · D/VS1

    €182€350/ct × 0.52 ctFree worldwide ship
    Details
  • Aether 0.51 — 0.51 ct round cut lab-grown diamondIGI

    Aether 0.51

    round · 0.51ct · D/VS1

    €179€350/ct × 0.51 ctFree worldwide ship
    Details
  • oval cut lab-grown diamond — SolaceIGI

    Solace

    oval · 1.80ct · F/VS1

    €630€350/ct × 1.80 ctFree worldwide ship
    Details
  • emerald cut lab-grown diamond — FrameIGI

    Frame

    emerald · 2.10ct · E/VVS2

    €735€350/ct × 2.10 ctFree worldwide ship
    Details
  • round cut lab-grown diamond — HaloIGI

    Halo

    round · 1.00ct · D/VVS1

    €350€350/ct × 1.00 ctFree worldwide ship
    Details
  • round cut lab-grown diamond — AuroraIGI

    Aurora

    round · 1.50ct · E/VS1

    €525€350/ct × 1.50 ctFree worldwide ship
    Details
  • pear cut lab-grown diamond — DriftIGI

    Drift

    pear · 1.30ct · F/VS2

    €455€350/ct × 1.30 ctFree worldwide ship
    Details
  • cushion cut lab-grown diamond — PlinthIGI

    Plinth

    cushion · 2.00ct · G/VS1

    €700€350/ct × 2.00 ctFree worldwide ship
    Details
+12

8 customers viewing right now

Last purchase: 2.1ct Emerald from Berlin, 3 min ago

4.9

Trustpilot

2,400+

Stones Sold

47

Countries

IGI graded

Independent 4C reports on every stone, laser-inscribed on the girdle.

Free insured shipping worldwide

Tracked, fully insured delivery in 14–21 business days on every order — no minimum. Customs marked per country.

14-day returns

Loupe it in hand. Not the one? Return it within 14 days for a full refund.

Ethically grown

Cultivated in advanced laboratories with zero mining and a fraction of a mined stone's footprint.

Lookbook

From the vault.

Browse all →
5 Reasons to Choose Lab-Grown Diamonds
DIAMO ELITE · Journal

5 Reasons to Choose
Lab-Grown Diamonds

The diamond industry kept this from you for decades. Here is what a modern, certified, ethically-grown stone actually offers.

Swipe
Diamo InvestComing soon

For investors: carat-allocation programme.

Learn more about Diamo Invest

Questions, answered

Yes. Lab-grown diamonds are chemically, physically and optically identical to mined diamonds — pure crystalline carbon, graded on the same 4Cs by the same labs (IGI, GIA).
Loose IGI-certified lab-grown diamonds start from €350/ct. Price is set only by carat weight: up to 3 ct the rate is €350/ct, from 3 ct the rate is €400/ct. Bulk pricing applies from 10 ct total order weight (€340/ct up to 3 ct, €380/ct from 3 ct); orders of 100 ct + are priced individually. Minimum stone weight is 0.50 ct. Every price includes an IGI certificate and free insured worldwide shipping. Available in round, oval, emerald, cushion, pear, princess, marquise, heart and more.
Round brilliant, oval, emerald, cushion, pear, princess, marquise, heart, radiant and baguette cuts — all IGI-certified and shipped loose in secured packaging.
Every stone ships with its own IGI certificate matched by report number, laser-inscribed on the girdle where the size allows.
Yes — free insured worldwide shipping on every order, with 14-day loupe-in-hand returns.