4.06 ct Princess Lab-grown diamond (Fancy Gray / SI1) — IGI certificate 12926305

A 4.06 carat princess lab-grown diamond, Fancy Gray color, SI1 clarity, Excellent cut. Facet Wire tracks this exact certificate so its price can be checked against the live market before you buy.

4.06 ct Princess lab-grown diamond, certificate IGI 12926305

Stone specifications

ShapePrincess
Carat4.06
ColorFancy Gray
ClaritySI1
CutExcellent
TypeLab-grown
CertificateIGI 12926305

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.

RetailerPrice$/ctvs lowestDeal check
New World Diamonds$4,440$1,094Lowest—

Facet Wire tracks 410 princess lab-grown diamonds; their median price is $519 per carat. This stone's lowest tracked price works out to $1,094 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 2026-10-21. Listings can sell or change price at any time; the retailer's own page is the final word at checkout.