Gemstones: Genuine Amethyst: 6 pieces, Briolette Drop 6x4 mm, 3.75 carats total weight. White Cubic Zirconia: 156 pieces, Round Shape 1.70 mm. White Cubic Zirconia: 26 pieces, Round Shape 1.50 mm. Gemstones have a deep rich color and tremendous fire. Necklace: 21.60 grams Pure Sterling Silver with .925 stamp, Rolo Style Chain, 14 to 16 inch adjustable length, 5 inch width. Necklace features one of a kind design with a beautiful White Gold finish.