925 Sterling Silver Lab Grown Ruby Flower Shape Necklace Oval genuine lab grown ruby necklace with one round diamond simulant, 3 Lab Created Ruby Necklace High Jewelry for Women 925 Sterling Silver 3.528 Carat Heart Cut Lab Grown Ruby & Diamond Simulant Floral Necklace Lab Grown Ruby (16 5 8 ct. t.w.) & Diamond (1 4 ct. t.w.) Rectangular. 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