Round lab-grown diamonds

Live round lab-grown diamond prices from every retailer Facet Wire tracks — same stones, different prices, one table.

Facet Wire is tracking 308 live round lab-grown listings right now across 9 retailers: MiaDonna (84), With Clarity (56), Frank Darling (48), Ritani (39), Ada Diamonds (27), Blue Nile (22), Whiteflash (15), Friendly Diamonds (12), VRAI (5). Prices run from $231 to $11,641, with a median of $1,070 ($673 per carat at the median). Data refreshes nightly — last build 2026-10-18.

Most popular / better value

Across these 308 listings, the most common color is D (141 stones), the most common clarity is VVS2 (95 stones).

Better value: E color / VVS1 clarity is the cheapest well-stocked spec combination here — 24 listings at a median of $417 per carat.

Cheapest live round lab-grown listings

StoneRetailerCaratColorClarityCertPrice$/ct
0.32 Carat Round Shaped, Ideal Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna0.32DVVS2IGI 779652599$231$722
0.32 Carat Round Shaped, Ideal Cut, D Color, VS1 Clarity, IGI Certified Lab Grown DiamondMiaDonna0.32DVS1IGI 779652610$231$722
0.32 Carat Round Shaped, Ideal Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna0.32DVVS2IGI 773630549$231$722
0.33 Carat Round Shaped, Ideal Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna0.33DVVS2IGI 779652576$238$721
0.33 Carat Round Shaped, Ideal Cut, D Color, VS1 Clarity, IGI Certified Lab Grown DiamondMiaDonna0.33DVS1IGI 781604472$238$721
0.33 Carat Round Shaped, Ideal Cut, D Color, VS1 Clarity, IGI Certified Lab Grown DiamondMiaDonna0.33DVS1IGI 779633186$238$721
0.43 Carat Round Shaped, Ideal Cut, D Color, VS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna0.43DVS2IGI 785617438$310$721
IGI 1.1 Carat D-VVS2 Ideal Cut Round Lab-Grown DiamondRitani1.10DVVS2IGI LG616491136$401$365
IGI 1.07 Carat D-VS1 Ideal Cut Round Lab-Grown DiamondRitani1.07DVS1IGI LG783608470$401$375
IGI 1.47 Carat D-VS2 Ideal Cut Round Lab-Grown DiamondRitani1.47DVS2IGI LG794678097$401$273
IGI 1.09 Carat D-VVS1 Ideal Cut Round Lab-Grown DiamondRitani1.09DVVS1IGI LG790659135$401$368
IGI 1.21 Carat G-VVS1 Ideal Cut Round Lab-Grown DiamondRitani1.21GVVS1IGI LG803688545$401$331

Search all 1997 tracked listings →

Frequently asked questions

How much does a round lab-grown diamond cost?

Across 308 live listings tracked by Facet Wire, round lab-grown diamonds run from $231 to $11,641, with a median price of $1,070 ($673 per carat). The cheapest tracked right now is a 0.32 ct stone at MiaDonna for $231.

Which retailer is cheapest for round lab-grown diamonds?

It changes nightly — that is the point of Facet Wire. The table on this page is sorted by live price across MiaDonna, With Clarity, Frank Darling, Ritani, Ada Diamonds, Blue Nile, Whiteflash, Friendly Diamonds, VRAI, and the same certified stone often appears at several retailers with a real price gap.

Are round diamonds good value?

Round stones are priced off live market data here, not list prices. Compare the per-carat column: at the median, round lab-grown diamonds run $673 per carat across our tracked retailers.

How often do these prices update?

Facet Wire re-scrapes its retailers nightly and rebuilds this page from the fresh data, so counts, medians and the cheapest listings reflect the latest run.