1.58 ct Cushion Lab-grown diamond (G / VS1) — IGI certificate 549278815
A 1.58 carat cushion lab-grown diamond, G color, VS1 clarity, Very Good 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 | 1.58 |
| Color | G |
| Clarity | VS1 |
| Cut | Very Good |
| Type | Lab-grown |
| Certificate | IGI 549278815 |
Where this stone is listed Cert matched
This exact certificate is currently listed by 2 retailers in 2 listings. Lowest: $552 at Adiamor — $174 less than the highest tracked listing of this same stone.
| Retailer | Price | $/ct | vs lowest | Deal check |
|---|---|---|---|---|
| Adiamor | $552 | $349 | Lowest | Fair Price -1% vs median $/ct for identical specs · 291 stones |
| MiaDonna | $726 | $459 | +$174 | Overpriced +30% vs median $/ct for identical specs · 291 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 $349 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 2026-10-27. Listings can sell or change price at any time; the retailer's own page is the final word at checkout.