FACETWIREPrice IntelligenceUnder 1 Carat cushion lab-grown diamonds
Every under 1 carat cushion lab-grown diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 30 live under 1 carat cushion lab-grown listings right now across 1 retailers: New World Diamonds (30). Prices run from $185 to $1,105, with a median of $685 ($1,000 per carat at the median). Data refreshes nightly — last build 2026-10-21.
Most popular / better value
Across these 30 listings, the most common color is FANCY VIVID PINK (16 stones), the most common clarity is SI1 (19 stones).
Better value: FANCY VIVID PINK color / SI1 clarity is the cheapest well-stocked spec combination here — 10 listings at a median of $1,000 per carat.
Cheapest live under 1 carat 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 |
| 0.76Ct K SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.76 | K | SI1 | IGI LG12231301 | $195 | $257 |
| 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 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 |
| 0.96Ct K SI1 IGL Certified Cushion Lab Grown Diamond | New World Diamonds | 0.96 | K | SI1 | IGL 2310519001 | $275 | $286 |
| 0.8Ct Deep Blue SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.80 | Fancy Deep Greenish Blue | SI1 | IGI LG11924807 | $560 | $700 |
| 0.73Ct Vivid Pink SI2 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.73 | Fancy Vivid Orangy Pink | SI2 | IGI LG11883602 | $585 | $801 |
| 0.62Ct Vivid Pink SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.62 | Fancy Vivid Pink | SI1 | IGI LG22101408 | $620 | $1,000 |
| 0.64Ct Vivid Pink SI1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.64 | Fancy Vivid Pink | SI1 | IGI LG22101409 | $640 | $1,000 |
| 0.53Ct Vivid Pink VS1 IGI Certified Cushion Lab Grown Diamond | New World Diamonds | 0.53 | Fancy Vivid Pink | VS1 | IGI LG22101404 | $640 | $1,208 |
Frequently asked questions
How much does a cushion lab-grown diamond cost?
Across 30 live listings tracked by Facet Wire, cushion lab-grown diamonds run from $185 to $1,105, with a median price of $685 ($1,000 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 New World 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 $1,000 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.