1.5 Carat radiant lab-grown diamonds

Every 1.5 carat radiant lab-grown diamond Facet Wire tracks, sorted by live price.

Facet Wire is tracking 41 live 1.5 carat radiant lab-grown listings right now across 5 retailers: With Clarity (21), Ada Diamonds (10), Blue Nile (5), MiaDonna (3), Frank Darling (2). Prices run from $637 to $3,200, with a median of $972 ($490 per carat at the median). Data refreshes nightly — last build 2026-10-18.

Most popular / better value

Across these 41 listings, the most common color is E (25 stones), the most common clarity is VVS2 (26 stones).

Better value: E color / VVS2 clarity is the cheapest well-stocked spec combination here — 19 listings at a median of $404 per carat.

Cheapest live 1.5 carat radiant lab-grown listings

Stone	Retailer	Carat	Color	Clarity	Cert	Price	$/ct
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$637	$401
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$643	$404
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$643	$404
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$643	$404
IGI 1.59 Carat E-VVS2 Excellent Cut Radiant Lab-Grown Diamond	With Clarity	1.59	E	VVS2	IGI 726538769	$650	$409

Search all 1997 tracked listings →

Frequently asked questions

How much does a radiant lab-grown diamond cost?

Across 41 live listings tracked by Facet Wire, radiant lab-grown diamonds run from $637 to $3,200, with a median price of $972 ($490 per carat). The cheapest tracked right now is a 1.59 ct stone at With Clarity for $637.

Which retailer is cheapest for radiant 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, Ada Diamonds, Blue Nile, MiaDonna, Frank Darling, and the same certified stone often appears at several retailers with a real price gap.

Are radiant diamonds good value?

Radiant stones are priced off live market data here, not list prices. Compare the per-carat column: at the median, radiant lab-grown diamonds run $490 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.