Asprey of London Falling Heart in 18 Karat White Gold Pendant Necklace 18k Gold Plated Heart Pendant Necklace Made With Swarovski Elements Diamond Heart Pendant 18K Gold Plated Necklace, Gold Catherines Chic 18k Gold Plated Stainless Steel Heart Pendant Necklace Bracelet Necklace 18K Diamond Heart Pendant Necklace 18K Yellow Gold Pendant. Pieces: 1 piece Material: 18K Gold Plated,Copper Care instructions: 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 (Measurements by inches) & Size Conversion Size Chain length Extension chain length One Size 16. 3 1. 8