Ruby & Diamond Cocktail Ring 18kt White Gold. A beautiful 18kt white gold cocktail ring, in a floral design, with rubies and diamonds, size 5 1/2. The ring is not hallmarked but has been tested. The gorgeous ring has five round cut rubies weighing 0.95cttw and fifteen diamonds weighing 0.23cttw. The ring was cast and handset and is in very good condition. This includes an insurance appraisal of $1875.00.