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Lab-Grown vs Natural Diamond Price Calculator

Pick your 4Cs and see a lab-grown diamond priced side by side with the identical natural stone — the dollar saving, the percentage you save, and what each is worth if you ever resell.

Diamond details

ct

Same 4Cs, two markets. We price an identical natural and lab-grown stone side by side so you can see exactly what you save — and what you give up on resale.

You save with lab-grown

$4,800

80% less

A 1 ct lab-grown diamond at these grades costs about 80% less than the same natural stone.

Natural diamond

$6,000

≈ $6,000 / carat

Retail range

$5,100 – $6,900

Resale / trade-in

$1,500 – $2,700

Lab-grown diamond

$1,200

≈ $1,200 / carat

Retail range

$1,020 – $1,380

Resale / trade-in

$60 – $180

Estimates only — not an appraisal. Lab-grown wholesale prices keep falling, so resale recovery is far weaker than for natural stones. For insurance or sale, get a certified appraisal (GIA/IGI).

How much do lab-grown diamonds cost vs natural?

Estimated price for a benchmark stone — round brilliant, G colour, VS1 clarity, Excellent cut — across common carat weights, natural versus lab-grown. Your exact grades move these figures, so run them through the comparator above for a personalised number.

CaratNatural (est.)Lab-grown (est.)You save
0.50 ct$1,600$32080%
1.00 ct$6,000$1,20080%
1.50 ct$12,000$2,40080%
2.00 ct$22,000$4,40080%
3.00 ct$45,000$9,00080%

Estimates only — not an appraisal. Need a full retail and resale breakdown for a single stone? Use the diamond price calculator, or brush up on grading with the diamond clarity & colour chart.

Are lab-grown diamonds worth it?

Honestly, it depends what you want from the stone. A lab-grown diamond is the same material as a mined one and looks identical, so for everyday beauty it is exceptional value. As an investment it is not — the resale market is weak and getting weaker. Here is the straight trade-off.

The case for lab-grown

  • Chemically and optically identical to a mined diamond — a real diamond, not a simulant.
  • Roughly 70–90% cheaper, so the same budget buys a bigger or higher-grade stone.
  • Certified by the same labs (GIA, IGI) on the same 4Cs.
  • Conflict-free origin with a smaller mining footprint.

The trade-offs

  • Very weak resale value — often only 5–15% of what you paid.
  • Wholesale prices keep falling, so today’s stone may cost less next year.
  • No scarcity premium, so it will not hold value like a natural diamond.
  • Not an heirloom asset — buy it to wear and enjoy, not to resell.

Want the full picture? Read our deeper guide on lab-grown vs natural diamonds, value a single stone end to end with the diamond price calculator, or learn why diamond is April's birthstone.

Frequently Asked Questions

How much cheaper are lab-grown diamonds than natural?
A lab-grown diamond typically costs 70–90% less than a natural diamond of the same carat, cut, colour and clarity. Because lab-grown wholesale prices have fallen sharply, the gap has widened — a stone that was 30–40% cheaper a few years ago is often 80%+ cheaper today. Run your exact 4Cs through the calculator above to see the dollar saving for your grade.
Are lab-grown diamonds real diamonds?
Yes. A lab-grown diamond is chemically, physically and optically identical to a mined diamond — it is pure crystallised carbon and tests as a real diamond. The only difference is origin: one forms in the earth over billions of years, the other in a reactor over a few weeks. Both are graded by the same labs (GIA, IGI) on the same 4Cs.
Are lab-grown diamonds worth it?
For the look, yes — you get a visually identical, certified diamond for a fraction of the price, so you can buy a larger or higher-grade stone for the same budget. The trade-off is resale value: lab-grown diamonds recover very little secondhand, and wholesale prices keep falling, so treat one as something to wear and enjoy rather than a financial asset.
Why do lab-grown diamonds have such poor resale value?
Production capacity has grown fast and manufacturing costs keep dropping, so the wholesale price of new lab-grown diamonds falls year on year. A buyer can always purchase a fresh stone cheaply, which leaves little room to resell a used one. We estimate lab-grown resale at roughly 5–15% of the original price, versus around 25–45% for natural diamonds.
Can a jeweller tell a lab-grown diamond from a natural one?
Not by eye, and not with a standard loupe — they look identical. Distinguishing them requires specialised equipment that detects tiny differences in how the crystal grew, which is why every lab-grown diamond should come with a certificate stating it is laboratory-grown. Always insist on a GIA or IGI report that names the origin.
How much is a 1 carat lab-grown diamond?
A 1 carat lab-grown round at a mid grade (G colour, VS1 clarity, Excellent cut) typically lands around a few hundred to roughly $1,500, against $5,000–$7,000 for the equivalent natural stone. Use the comparator above and the carat reference table below for a like-for-like figure at your grade.