FACETWIREPrice Intelligence3.78 ct Radiant Lab-grown diamond (G / VS1) — IGI certificate 677555818
A 3.78 carat radiant lab-grown diamond, G color, VS1 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 | Radiant |
|---|---|
| Carat | 3.78 |
| Color | G |
| Clarity | VS1 |
| Cut | Ideal |
| Type | Lab-grown |
| Certificate | IGI 677555818 |
Where this stone is listed Cert matched
This exact certificate is currently listed by 2 retailers in 2 listings. Lowest: $1,455 at Adiamor — $468 less than the highest tracked listing of this same stone.
| Retailer | Price | $/ct | vs lowest | Deal check |
|---|---|---|---|---|
| Adiamor | $1,455 | $385 | Lowest | Fair Price +2% vs median $/ct for identical specs · 97 stones |
| MiaDonna | $1,923 | $509 | +$468 | Overpriced +35% vs median $/ct for identical specs · 97 stones |
Facet Wire tracks 64108 radiant lab-grown diamonds; their median price is $478 per carat. This stone's lowest tracked price works out to $385 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.