1 Carat round lab-grown diamonds

Every 1 carat round lab-grown diamond Facet Wire tracks, sorted by live price.

Facet Wire is tracking 10 live 1 carat round lab-grown listings right now across 3 retailers: With Clarity (5), Frank Darling (4), Ada Diamonds (1). Prices run from $498 to $1,475, with a median of $648 ($598 per carat at the median). Data refreshes nightly — last build 2026-10-17.

Cheapest live 1 carat round lab-grown listings

Stone	Retailer	Carat	Color	Clarity	Cert	Price	$/ct
IGI 1.31 Carat E-VS1 Very Good Cut Round Lab-Grown Diamond	With Clarity	1.31	E	VS1	IGI 711515791	$498	$380
IGI 1.43 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	With Clarity	1.43	E	VS1	IGI 787609497	$586	$410
IGI 1 Carat D-VS1 Very Good Cut Round Lab-Grown Diamond	With Clarity	1.00	D	VS1	IGI 782608886	$598	$598
IGI 1.01 Carat F-VVS2 Ideal Cut Round Lab-Grown Diamond	With Clarity	1.01	F	VVS2	IGI 844610793	$604	$598
IGI 1 Carat D-VVS2 Super Ideal Cut Round Lab-Grown Diamond	Frank Darling	1.00	D	VVS2	IGI PD-233382	$630	$630
IGI 1.15 Carat D-VS1 Very Good Cut Round Lab-Grown Diamond	Frank Darling	1.15	D	VS1	IGI PD-221609	$665	$578
IGI 1.31 Carat F-VVS2 Super Ideal Cut Round Lab-Grown Diamond	Frank Darling	1.31	F	VVS2	IGI 838626052	$766	$585
IGI 1.3 Carat D-VVS2 Super Ideal Cut Round Lab-Grown Diamond	Frank Darling	1.30	D	VVS2	IGI 801633428	$918	$706
IGI 1 Carat D-FL Ideal Cut Round Lab-Grown Diamond	With Clarity	1.00	D	FL	IGI 838645068	$1,188	$1,188
GCAL 1.21 Carat D-VS2 Round Lab-Grown Diamond	Ada Diamonds	1.21	D	VS2	GCAL LG322802019	$1,475	$1,219

Search all 541 tracked listings →

Frequently asked questions

How much does a round lab-grown diamond cost?

Across 10 live listings tracked by Facet Wire, round lab-grown diamonds run from $498 to $1,475, with a median price of $648 ($598 per carat). The cheapest tracked right now is a 1.31 ct stone at With Clarity for $498.

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 With Clarity, Frank Darling, Ada Diamonds, 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 $598 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.