FACETWIREPrice Intelligence1 Carat radiant lab-grown diamonds
Every 1 carat radiant lab-grown diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 15 live 1 carat radiant lab-grown listings right now across 3 retailers: Friendly Diamonds (8), Ada Diamonds (6), MiaDonna (1). Prices run from $484 to $1,975, with a median of $531 ($458 per carat at the median). Data refreshes nightly — last build 2026-10-18.
Most popular / better value
Across these 15 listings, the most common color is E (6 stones), the most common clarity is VVS2 (5 stones).
Cheapest live 1 carat radiant lab-grown listings
Frequently asked questions
How much does a radiant lab-grown diamond cost?
Across 15 live listings tracked by Facet Wire, radiant lab-grown diamonds run from $484 to $1,975, with a median price of $531 ($458 per carat). The cheapest tracked right now is a 1.09 ct stone at Friendly Diamonds for $484.
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 Friendly Diamonds, Ada Diamonds, MiaDonna, 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 $458 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.