Trillion Cut Amethyst Combination Pendant Necklace in solid sterling silver. Size: 6.4 x 22.4 mm (0.25 x 0.88 in). Material: Sterling Silver. Total metal weight: 5.12 gr. Trillion cut amethyst (8 x 8 mm) = 2.25 ct total. Round cut amethyst (8 x 8 mm) = 2.25 ct total. Colour: Purple. Stone cut: Trillion Cut. Occasion: Engagement, Wedding. Anniversary: 6th Anniversary. Birthstone: February.