FACETWIREPrice Intelligence1.60 ct Marquise Lab-grown diamond (D / VS1) — IGI certificate 849668840
A 1.60 carat marquise lab-grown diamond, D 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 | Marquise |
|---|---|
| Carat | 1.60 |
| Color | D |
| Clarity | VS1 |
| Cut | Ideal |
| Type | Lab-grown |
| Certificate | IGI 849668840 |
Where this stone is listed Cert matched
This exact certificate is currently listed by 2 retailers in 2 listings. Lowest: $627 at Adiamor — $616 less than the highest tracked listing of this same stone.
| Retailer | Price | $/ct | vs lowest | Deal check |
|---|---|---|---|---|
| Adiamor | $627 | $392 | Lowest | Fair Price -8% vs median $/ct for identical specs · 892 stones |
| MiaDonna | $1,243 | $777 | +$616 | Overpriced +83% vs median $/ct for identical specs · 892 stones |
Same specs at other retailers
Stones with identical specs — Marquise, D color, VS1 clarity, carat within 0.10 — are tracked at other retailers (cheapest of them: Ritani at $658), and none is currently cheaper than this certificate's lowest tracked price of $627. Spec-matched stones are not the same physical diamond; only a matching certificate number proves that. How we match.
Facet Wire tracks 71830 marquise lab-grown diamonds; their median price is $485 per carat. This stone's lowest tracked price works out to $392 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.