Trillion Cut Peridot Two Stone Ring in solid sterling silver. Size: 16 x 7.9 mm (0.63 x 0.31 in). Material: Sterling Silver. Total metal weight: 3.5 gr. Trillion cut peridot (7 x 7 mm) = 1 ct total. Colour: Green. Stone cut: Trillion Cut. Occasion: Wedding, Formal Dress, Mother's Day. Anniversary: 16th Anniversary. Birthstone: August.