FACETWIREPrice Intelligence1.59 ct Round Lab-grown diamond (E / VS1) — IGI certificate 770640729
A 1.59 carat round lab-grown diamond, E color, VS1 clarity, Affinity 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 | 1.59 |
| Color | E |
| Clarity | VS1 |
| Cut | Affinity |
| Type | Lab-grown |
| Certificate | IGI 770640729 |
Where this stone is listed Cert matched
This exact certificate is currently listed by 2 retailers in 2 listings. Lowest: $539 at Adiamor — $429 less than the highest tracked listing of this same stone.
| Retailer | Price | $/ct | vs lowest | Deal check |
|---|---|---|---|---|
| Adiamor | $539 | $339 | Lowest | Fair Price -1% vs median $/ct for identical specs · 4090 stones |
| MiaDonna | $968 | $609 | +$429 | Overpriced +78% vs median $/ct for identical specs · 4090 stones |
Same specs at other retailers
Stones with identical specs — Round, E color, VS1 clarity, carat within 0.10 — are tracked at other retailers (cheapest of them: Ritani at $651), and none is currently cheaper than this certificate's lowest tracked price of $539. Spec-matched stones are not the same physical diamond; only a matching certificate number proves that. How we match.
Facet Wire tracks 217613 round lab-grown diamonds; their median price is $409 per carat. This stone's lowest tracked price works out to $339 per carat. This page is one of 880275 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.