Ark Angel Alchemy 15ct. Sterling Silver Large 20mm Mystic Crystal Aurora Pendant Pendant is 33mm in Length by 21mm in width, weighing 9.2 grams.* Total carat weight is 46cts. The large, mystic quartz glass stone measures 20mm in diameter and sparkles with green, pink, purple and blue colors.* Stone is synthetic crystal and glass with a rainbow coating for a multi-colored effect. Handmade, Polished Finish, Excellent Quality, Meticulous Detail. Chain is not included.