RING: [1] Yellow sapphire and 18k (stamped) yellow gold thorn motif ring by Stephen Webster. 1 inch wide with open center. (172) 1.5 to 2.0mm round yellow sapphires (fine) estimated 2.50 cttw. Stamped with London city mark, SW for Stephen Webster jeweler. Size 5 1/2. 9.3 grams.