Estate 0.45ct natural earth-mined diamond vintage old round cut 1/2 carat 5mm

Vintage / antique genuine NATURAL single diamond, very sparkly and pretty. This is an earth-mined diamond. Approximately 0.45 carat, approximately 4.9mm diameter, H - I color, SI - I clarity. Possibly some kind of transitional cut or early round brilliant. It is very nice and pretty and faces up white. Pictures and videos were taken on a rainy day. The diamond is more beautiful in person. Perfect for jewelry making or if you just want to own a vintage diamond. Some pictures are enlarged to show details. In the pictures of 3 diamonds the diamond of this listing is the middle one. Last picture is a scrap price estimate on stone algo as of sept 24 2025. Estimated retail $1300+ in jewelry store This diamond has been checked by a GIA gemologist in terms of approximate color and clarity ranges. Tagged catbird for exposure vintage diamond, antique diamond, old cut diamond, oec, omc, sustainable, old european, old euro, heirloom, timeless, estate jewelry, fine jewelry, custom jewelry, art deco, edwardian, Victorian, retro, engagement ring, luxury, lux, catbird, collectible, ooak, recycled diamond, real diamond