Same budget. A visibly bigger diamond.
Enter what you plan to spend and compare how many carats a mined diamond delivers versus a DIAMO ELITE lab-grown stone — same D–F colour, VS1+ clarity and IGI certification.
Why use this calculator
Instant budget-to-carat
Slide your budget and see the exact carat weight a mined diamond buys versus a lab-grown diamond of the same grade.
Same 4Cs, bigger stone
D–F colour, VS1+ clarity and Excellent cut — the same specification, just without the mining scarcity premium.
IGI certified
Every stone is independently graded by IGI, the same lab that certifies the world's finest mined diamonds.
Insured shipping + returns
Free insured worldwide delivery and a 14-day returns window so you can inspect the stone in hand.
No pressure follow-up
Save your result, request a written quote, or browse matching certified stones — no obligation.
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.
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.
EU VAT included. Final price confirmed at checkout.
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
- Look up wholesale USD at the nearest carat anchor for chosen colour + clarity.
- Log-linear interpolation on carat between two anchors.
- Multiply by cut × shape × certification coefficients.
- Convert USD → EUR at a fixed rate.
- 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
- IDEX Online Diamond Index
Professional wholesale/retail diamond price index used as a market reference.
- Rapaport Diamond Report
Industry-standard diamond price sheet for round D–F / VS+ mined stones.
- Blue Nile — diamond education & prices
Public retail pricing for comparable mined diamonds.
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.
- 01Wholesale anchors for F/VS10.5 ct → $175 · 1.0 ct → $350
- 02Log-linear interpolation to 1.00 ct$350
- 03× cut × shape × certification= $350×1.00 · ×1.00 · ×1.00 = ×1.000
- 04Convert USD → EUR (×1)€350
- 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.
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.
1.5 ct
Round · F · VS1
€1,400
€525
EU VAT included. Final price confirmed at checkout.
2 ct
Round · F · VS1
€1,630
€700
EU VAT included. Final price confirmed at checkout.
3 ct
Round · F · VS1
€2,770
€1,200
EU VAT included. Final price confirmed at checkout.
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
- Look up wholesale USD at the nearest carat anchor for chosen colour + clarity.
- Log-linear interpolation on carat between two anchors.
- Multiply by cut × shape × certification coefficients.
- Convert USD → EUR at a fixed rate.
- 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
- IDEX Online Diamond Index
Professional wholesale/retail diamond price index used as a market reference.
- Rapaport Diamond Report
Industry-standard diamond price sheet for round D–F / VS+ mined stones.
- Blue Nile — diamond education & prices
Public retail pricing for comparable mined diamonds.
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.
- 01Wholesale anchors for F/VS10.5 ct → $175 · 1.0 ct → $350
- 02Log-linear interpolation to 1.00 ct$350
- 03× cut × shape × certification= $350×1.00 · ×1.00 · ×1.00 = ×1.000
- 04Convert USD → EUR (×1)€350
- 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.
Ready to see the stones?
Browse certified lab-grown diamonds in stock, or tell us your budget and we will recommend the best carat, colour and clarity for your engagement ring.