This Casual Round Dancing Moissanite CZ Lock 925 Sterling Silver Necklace features 1 Moissanite Cubic Zirconia of 0.5ct, with 9mm pendant size, solid 925 Sterling Silver metal material, and AAA Cubic Zirconia accent stones. The chain length is 15 3/4 inches + 2 inches (adjustable), with a total weight of 2.3g, and a rhodium electroplating finish. Moissanite is a gemstone. Moissanite is quite rare and therefore must be created in a lab. It is more expensive than cubic zirconia. Moissanite is extremely durable and tough and second only to diamonds in its ability to resist scratching and abrasion. Imported. Estimated delivery: 10-12 days.