FACETWIREPrice Intelligence3 Carat cushion lab-grown diamonds
Every 3 carat cushion lab-grown diamond Facet Wire tracks, sorted by live price.
Facet Wire is tracking 15 live 3 carat cushion lab-grown listings right now across 1 retailers: VRAI (15). Prices run from $4,670 to $8,350, with a median of $5,400 ($1,502 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 D (15 stones), the most common clarity is VS1 (10 stones).
Better value: D color / VS1 clarity is the cheapest well-stocked spec combination here — 10 listings at a median of $1,501 per carat.
Cheapest live 3 carat cushion lab-grown listings
| Stone | Retailer | Carat | Color | Clarity | Cert | Price | $/ct |
|---|---|---|---|---|---|---|---|
| Cushion 3.11 Excellent D VS1 F639741 | VRAI | 3.11 | D | VS1 | — | $4,670 | $1,502 |
| Cushion 3.21 Excellent D VS1 F638318 | VRAI | 3.21 | D | VS1 | — | $4,820 | $1,502 |
| Cushion 3.24 Excellent D VS1 F638939 | VRAI | 3.24 | D | VS1 | — | $4,860 | $1,500 |
| Cushion 3.27 Excellent D VS1 F639308 | VRAI | 3.27 | D | VS1 | — | $4,910 | $1,502 |
| Cushion 3.36 Excellent D VS1 F638595 | VRAI | 3.36 | D | VS1 | — | $5,040 | $1,500 |
| Cushion 3.47 Excellent D VS1 F638792 | VRAI | 3.47 | D | VS1 | — | $5,210 | $1,501 |
| Cushion 3.52 Excellent D VS1 F639785 | VRAI | 3.52 | D | VS1 | — | $5,280 | $1,500 |
| Cushion 3.6 Excellent D VS1 F639338 | VRAI | 3.60 | D | VS1 | — | $5,400 | $1,500 |
| Cushion 3.27 Excellent D VVS2 F639093 | VRAI | 3.27 | D | VVS2 | — | $5,400 | $1,651 |
| Cushion 3.29 Excellent D VVS2 F639705 | VRAI | 3.29 | D | VVS2 | — | $5,430 | $1,650 |
| Cushion 3.71 Excellent D VS1 F638945 | VRAI | 3.71 | D | VS1 | — | $5,570 | $1,501 |
| Cushion 3.8 Excellent D VS1 F639039 | VRAI | 3.80 | D | VS1 | — | $5,700 | $1,500 |
Frequently asked questions
How much does a cushion lab-grown diamond cost?
Across 15 live listings tracked by Facet Wire, cushion lab-grown diamonds run from $4,670 to $8,350, with a median price of $5,400 ($1,502 per carat). The cheapest tracked right now is a 3.11 ct stone at VRAI for $4,670.
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 VRAI, 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 $1,502 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.