FACETWIREPrice IntelligenceRadiant lab-grown diamonds
Live radiant lab-grown diamond prices from every retailer Facet Wire tracks — same stones, different prices, one table.
Facet Wire is tracking 610 live radiant lab-grown listings right now across 7 retailers: New World Diamonds (493), MiaDonna (27), Ada Diamonds (26), With Clarity (23), Friendly Diamonds (16), Frank Darling (13), Blue Nile (12). Prices run from $290 to $31,985, with a median of $1,240 ($702 per carat at the median). Data refreshes nightly — last build 2026-10-22.
Most popular / better value
Across these 610 listings, the most common color is E (159 stones), the most common clarity is VVS2 (224 stones).
Better value: E color / VVS2 clarity is the cheapest well-stocked spec combination here — 105 listings at a median of $443 per carat.
Cheapest live radiant lab-grown listings
| Stone | Retailer | Carat | Color | Clarity | Cert | Price | $/ct |
|---|---|---|---|---|---|---|---|
| 0.48Ct Deep Orange I1 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 0.48 | Fancy Deep Orange | I1 | IGI 270778034 | $290 | $604 |
| 1.08Ct F VS2 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.08 | F | VS2 | IGI LG12350918 | $345 | $319 |
| 1.05Ct G VS1 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.05 | G | VS1 | IGI LG12350919 | $350 | $333 |
| 1.23Ct G VS2 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.23 | G | VS2 | IGI LG12350915 | $365 | $297 |
| 1.31Ct J SI2 IGL Certified Radiant Lab Grown Diamond | New World Diamonds | 1.31 | J | SI2 | IGL 2301734001 | $370 | $282 |
| 1.03Ct L SI1 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.03 | L | SI1 | IGI LG12242220 | $375 | $364 |
| 0.49Ct Vivid Pink SI2 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 0.49 | Fancy Vivid Pink | SI2 | IGI LG22100601 | $395 | $806 |
| 1.11Ct L SI1 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.11 | L | SI1 | IGI LG12242213 | $400 | $360 |
| 1Ct I SI2 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.00 | I | SI2 | IGI LG12350914 | $415 | $415 |
| 1.18Ct L SI1 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.18 | L | SI1 | IGI LG12231306 | $420 | $356 |
| 1.01 ct Radiant D VS2 Lab-Grown Diamond | Friendly Diamonds | 1.01 | D | VS2 | — | $426 | $422 |
| 1.21Ct K SI1 IGI Certified Radiant Lab Grown Diamond | New World Diamonds | 1.21 | K | SI1 | IGI LG12242210 | $430 | $355 |
Frequently asked questions
How much does a radiant lab-grown diamond cost?
Across 610 live listings tracked by Facet Wire, radiant lab-grown diamonds run from $290 to $31,985, with a median price of $1,240 ($702 per carat). The cheapest tracked right now is a 0.48 ct stone at New World Diamonds for $290.
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 New World Diamonds, MiaDonna, Ada Diamonds, With Clarity, Friendly Diamonds, Frank Darling, Blue Nile, 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 $702 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.