FACETWIREPrice IntelligenceCushion lab-grown diamonds
Live cushion lab-grown diamond prices from every retailer Facet Wire tracks — same stones, different prices, one table.
Facet Wire is tracking 6764 live cushion lab-grown listings right now across 8 retailers: Grown Brilliance (6168), New World Diamonds (492), MiaDonna (43), Ada Diamonds (19), VRAI (15), With Clarity (13), Friendly Diamonds (11), Frank Darling (3). Prices run from $185 to $45,135, with a median of $1,630 ($619 per carat at the median). Data refreshes nightly — last build 2026-10-22.
Most popular / better value
Across these 6764 listings, the most common color is E (3195 stones), the most common clarity is VVS2 (2721 stones).
Better value: F color / VS2 clarity is the cheapest well-stocked spec combination here — 135 listings at a median of $479 per carat.
Cheapest live cushion lab-grown listings
| Stone | Retailer | Carat | Color | Clarity | Cert | Price | $/ct |
|---|---|---|---|---|---|---|---|
| 0.76Ct K SI2 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.76 | K | SI2 | IGI LG12231302 | $185 | $243 |
| 0.69Ct H SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.69 | H | SI1 | IGI LG11924609 | $195 | $283 |
| 0.78Ct J SI2 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.78 | J | SI2 | IGI LG12231120 | $195 | $250 |
| 0.76Ct K SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.76 | K | SI1 | IGI LG12231301 | $195 | $257 |
| 0.76Ct J SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.76 | J | SI1 | IGI LG12242508 | $200 | $263 |
| 0.7Ct I SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.70 | I | SI1 | IGI LG12231303 | $215 | $307 |
| 1.07Ct K VS1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 1.07 | K | VS1 | IGI LG12242505 | $265 | $248 |
| 1.15Ct K VS2 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 1.15 | K | VS2 | IGI LG12242504 | $265 | $230 |
| 0.96Ct K SI1 IGL Certified Cushion Lab Grown Diamond | New World Diamonds | 0.96 | K | SI1 | IGL 2310519001 | $275 | $286 |
| 1.05Ct J VS2 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 1.05 | J | VS2 | IGI LG11924607 | $290 | $276 |
| 1.09Ct J VS2 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 1.09 | J | VS2 | IGI LG12350911 | $300 | $275 |
| 1.1Ct J VS2 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 1.10 | J | VS2 | IGI LG12350910 | $300 | $273 |
Frequently asked questions
How much does a cushion lab-grown diamond cost?
Across 6764 live listings tracked by Facet Wire, cushion lab-grown diamonds run from $185 to $45,135, with a median price of $1,630 ($619 per carat). The cheapest tracked right now is a 0.76 ct stone at New World Diamonds for $185.
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 Grown Brilliance, New World Diamonds, MiaDonna, Ada Diamonds, VRAI, With Clarity, Friendly Diamonds, 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 $619 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.