opal diamonds Set 2- piece, ring and pendant, 585 white gold, ring with opal cabochon (12, 2 x 8, 3 x 3 mm, approximate 2 ct) and 18 x 8 / 8 diamonds together approximate 0, 10 ct, RW 52; pendant with opal cabochon (approximate 12, 2 x 8, 3 x 3 mm, approximate 2 ct) and 18 x 8 / 8 diamonds, together approximate 0, 10 ct. total weight approximate 6, 49 g