If you love the color of a mystic fire topaz then you will want this beautiful, colorful mystic fire topaz and diamond necklace! It features an 8x8 mm (2.5 ct) cushion cut, genuine mystic fire topaz surrounded by .10 ctw of round, genuine diamonds. The mystic fire topaz is a natural topaz that has been coated using a vapor disposition process that causes the color changes. This stone show heavy purple and green with a little blue. The setting is solid .925 sterling silver. The pendant is 22x12 mm (7/8x7/16 inch) including the bale. It comes on an 18 inch long rope chain with a round spring clasp also made of solid .925 sterling silver. Pendant and chain weigh 3.2 grams together.