RING: [1] Diamond and 18k (stamped) white gold thorn motif ring by Stephen Webster. 1 inch wide with open center. (172) 1.5 to 2.0mm round diamonds, VS/G-H, estimated 3.00 cttw. Stamped with London city mark, SW for Stephen Webster jeweler. 2007 date mark. Size 5 1/2. 9.9 grams.