FACETWIREPrice Intelligence1.55 ct Round Lab-grown diamond (D / VVS1) — IGI certificate 781614591
A 1.55 carat round lab-grown diamond, D color, VVS1 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 | Round |
|---|---|
| Carat | 1.55 |
| Color | D |
| Clarity | VVS1 |
| Cut | Ideal |
| Type | Lab-grown |
| Certificate | IGI 781614591 |
Where this stone is listed Cert matched
This exact certificate is currently listed by 2 retailers in 2 listings. Lowest: $677 at Adiamor — $786 less than the highest tracked listing of this same stone.
| Retailer | Price | $/ct | vs lowest | Deal check |
|---|---|---|---|---|
| Adiamor | $677 | $437 | Lowest | Fair Price -2% vs median $/ct for identical specs · 4749 stones |
| MiaDonna | $1,463 | $944 | +$786 | Overpriced +113% vs median $/ct for identical specs · 4749 stones |
Same specs at other retailers
A different stone with identical specs — Round, D color, VVS1 clarity, carat within 0.10 — is listed at Ritani for $651, which is $26 less than this certificate's lowest tracked price. Spec-matched stones are not the same physical diamond; only a matching certificate number proves that. How we match.
Facet Wire tracks 246013 round lab-grown diamonds; their median price is $405 per carat. This stone's lowest tracked price works out to $437 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.