Vintage Deco Green Sapphire Ring in 18k White Gold.  This amazing Art Deco engagement ring features a .84 carat round cut green sapphire set in 18 karat white gold. The color of the sapphire is a cool, muted green that looks amazing in the polished Deco mounting. The shoulders are full of polished flat sections with milgrain borders that are separated by nice open spaces. This lovely green sapphire make this unique vintage mounting even more special!