Lab Grown Inverted Pear Ruby Necklace with Lab Diamonds Lab Ruby Pendant: Prismatic 925 Sterling Silver Necklace Etsy Lab Created Ruby Necklace High Jewelry for Women 925 Sterling Silver Lab Created Ruby Necklace Lab Created Sapphires Sterling Silver Kay Waterdrop S925 Sterling Silver Lab Grown Ruby Necklace 6.5ct Oval Lab Grown Ruby Cluster Halo Pendant Necklace Provence Jewelry. Pieces: 1 piece Material: 18K rose gold plated, 925 sterling silver 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. 5 1. 2