Trillion Cut Peridot & Diamond Pendant Necklace in solid 9ct white gold. Size: 9.7 x 16 mm (0.38 x 0.63 in). Material: White Gold. Total metal weight: 1.16 gr. Trillion cut peridot (9 x 9 mm) = 3.02 ct total. Round brilliant cut diamond (1 x 1 mm, H colour, SI1 clarity) = 0.04 ct total. Colour: Green. Stone cut: Trillion Cut. Occasion: Wedding, Mother's Day. Anniversary: 16th Anniversary. Birthstone: August.