Ruby pendant necklace in solid 9ct white gold. Ruby pendant necklace in solid 9ct white gold. Size: 31.5 x 57.2 mm (1.24 x 2.25 in). Material: 9ct White Gold. Total metal weight: 4.78 gr. 23 round cut rubies. Colour: Red. Stone cut: Round Cut. Anniversary: 15th Anniversary, 40th Anniversary. Birthstone: July.