1.5 Carat cushion lab-grown diamonds

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

Facet Wire is tracking 24 live 1.5 carat cushion lab-grown listings right now across 4 retailers: Ada Diamonds (13), MiaDonna (8), With Clarity (2), Frank Darling (1). Prices run from $819 to $3,275, with a median of $1,888 ($1,238 per carat at the median). Data refreshes nightly — last build 2026-10-18.

Most popular / better value

Across these 24 listings, the most common color is D (14 stones), the most common clarity is VS1 (10 stones).

Cheapest live 1.5 carat cushion lab-grown listings

StoneRetailerCaratColorClarityCertPrice$/ct
IGI 1.5 Carat E-VVS2 Very Good Cut Cushion Lab-Grown DiamondWith Clarity1.50EVVS2IGI 756523455$819$546
1.52 Carat Cushion Shaped, Very Good Cut, E Color, VS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.52EVS2IGI 801676072$898$591
1.53 Carat Cushion Shaped, Very Good Cut, E Color, VS1 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.53EVS1IGI 786672460$903$590
1.52 Carat Cushion Shaped, Very Good Cut, D Color, VS1 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.52DVS1IGI 803667043$1,146$754
1.50 Carat Cushion Shaped, Very Good Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.50DVVS2IGI 773656100$1,163$775
1.51 Carat Cushion Shaped, Very Good Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.51DVVS2IGI LG844657114$1,171$775
1.53 Carat Cushion Shaped, Very Good Cut, D Color, VVS2 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.53DVVS2IGI 779653684$1,187$776
IGI 1.81 Carat E-VVS2 Very Good Cut Cushion Lab-Grown DiamondWith Clarity1.81EVVS2IGI 675561532$1,288$712
Lab Diamond [ID: 100761137125KD]Frank Darling1.59FVS1IGI 779609692$1,416$891
1.52 Carat Cushion Shaped, Very Good Cut, D Color, VVS1 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.52DVVS1IGI 826640787$1,473$969
1.52 Carat Cushion Shaped, Very Good Cut, D Color, VVS1 Clarity, IGI Certified Lab Grown DiamondMiaDonna1.52DVVS1IGI 803618292$1,473$969
GCAL 1.53 Carat E-VS2 Cushion Lab-Grown DiamondAda Diamonds1.53EVS2GCAL LG312940432$1,825$1,193

Search all 1997 tracked listings →

Frequently asked questions

How much does a cushion lab-grown diamond cost?

Across 24 live listings tracked by Facet Wire, cushion lab-grown diamonds run from $819 to $3,275, with a median price of $1,888 ($1,238 per carat). The cheapest tracked right now is a 1.50 ct stone at With Clarity for $819.

Which retailer is cheapest for cushion lab-grown diamonds?

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

Are cushion diamonds good value?

Cushion stones are priced off live market data here, not list prices. Compare the per-carat column: at the median, cushion lab-grown diamonds run $1,238 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.