1.48 ct Cushion Lab-grown diamond (D / SI1) — IGI certificate 777630862
A 1.48 carat cushion lab-grown diamond, D color, SI1 clarity, Ideal cut. Facet Wire tracks this exact certificate so its price can be checked against the live market before you buy.

Stone specifications
| Shape | Cushion |
|---|---|
| Carat | 1.48 |
| Color | D |
| Clarity | SI1 |
| Cut | Ideal |
| Type | Lab-grown |
| Certificate | IGI 777630862 |
Where this stone is listed Cert matched
This exact certificate is currently listed by 2 retailers in 2 listings. Lowest: $674 at Adiamor — $418 less than the highest tracked listing of this same stone.
| Retailer | Price | $/ct | vs lowest | Deal check |
|---|---|---|---|---|
| Adiamor | $674 | $455 | Lowest | Overpriced +24% vs median $/ct for identical specs · 90 stones |
| MiaDonna | $1,092 | $738 | +$418 | Overpriced +100% vs median $/ct for identical specs · 90 stones |
Facet Wire tracks 81438 cushion lab-grown diamonds; their median price is $467 per carat. This stone's lowest tracked price works out to $455 per carat. This page is one of 981579 certificate pages Facet Wire maintains — one for every tracked certificate.
Price tracked by Facet Wire — updated daily. First tracked 2026-10-28. Listings can sell or change price at any time; the retailer's own page is the final word at checkout.