925 Silver Cast Star Ruby and White Sapphire Ring. The featured Star Ruby is set within an elaborate.White Sapphire lattice gallery, completed by a two and one-half millimeter wide band. Bright polish finish with a yellow gold overlay and mil grain detailing. Designer - Orianne. Star Ruby approximate weight of 15.19ct.. 54 round cut natural White Sapphires with approximate weight of 1.13ct.. Total weight of all stones is 16.32ct, total weight of ring is 10.19 GM. American International Gemologists Report #019912325018.