FACETWIREPrice Intelligence1 Carat cushion lab-grown diamonds
Every 1 carat cushion lab-grown diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 10 live 1 carat cushion lab-grown listings right now across 5 retailers: Friendly Diamonds (4), MiaDonna (3), With Clarity (1), Frank Darling (1), Ada Diamonds (1). Prices run from $399 to $1,850, with a median of $644 ($517 per carat at the median). Data refreshes nightly — last build 2026-10-18.
Most popular / better value
Across these 10 listings, the most common color is D (6 stones), the most common clarity is VVS2 (6 stones).
Cheapest live 1 carat cushion lab-grown listings
Frequently asked questions
How much does a cushion lab-grown diamond cost?
Across 10 live listings tracked by Facet Wire, cushion lab-grown diamonds run from $399 to $1,850, with a median price of $644 ($517 per carat). The cheapest tracked right now is a 1.01 ct stone at Friendly Diamonds for $399.
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 Friendly Diamonds, MiaDonna, With Clarity, Frank Darling, Ada Diamonds, 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 $517 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.