Gorgeous 1 Carat Heart Cut Moissanite Pendant Necklace in 18K White Lab Grown Moissanite Heart Necklace 1ctw Dunsten Jewelry How to Choose the Best Moissanite Heart Pendant: A Complete Buying Guide 1 Carat Heart Cut Moissanite Necklace Romantic Gift Heart Moissanite Diamond Necklace 18K Solid Gold Necklace Etsy. Includes: A matching box. Moissanite jewelry over 0. 3 carats includes a certificate of stone properties. Limited warranty included, please contact us for any issues related to your purchase. Style: Minimalist Material: 925 sterling silver, Rhodium plated, Moissanite, Zircon(accent stones) Care: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide, which causes the jewelry to deteriorate and corrode over time. Imported Product measurements: Chain length: 16 in Extension chain length: 2 in Main stone: 1 carat Weight: 0. 1 oz (3 g)