FACETWIREPrice Intelligence1.50 ct Marquise Lab-grown diamond (E / IF) — IGI certificate 639433804
A 1.50 carat marquise lab-grown diamond, E color, IF 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 | Marquise |
|---|---|
| Carat | 1.50 |
| Color | E |
| Clarity | IF |
| Cut | Very-Good |
| Type | Lab-grown |
| Certificate | IGI 639433804 |
Where this stone is listed
Facet Wire currently tracks this certificate at one retailer. If another store lists the same certificate, it will appear here automatically.
| Retailer | Price | $/ct | vs lowest | Deal check |
|---|---|---|---|---|
| Ritani | $1,357 | $905 | Lowest | Fair Price -5% vs median $/ct for identical specs · 20 stones |
Same specs at other retailers
Stones with identical specs — Marquise, E color, IF clarity, carat within 0.10 — are tracked at other retailers (cheapest of them: Grown Brilliance at $1,365), and none is currently cheaper than this certificate's lowest tracked price of $1,357. Spec-matched stones are not the same physical diamond; only a matching certificate number proves that. How we match.
Facet Wire tracks 12759 marquise lab-grown diamonds; their median price is $579 per carat. This stone's lowest tracked price works out to $905 per carat. This page is one of 7820 certificate pages Facet Wire maintains — one for every tracked certificate.
Price tracked by Facet Wire — updated daily. First tracked 2026-10-17. Listings can sell or change price at any time; the retailer's own page is the final word at checkout.