Classic Trio Round Lab Grown Ruby Necklace 925 Sterling Silver Lab Grown Ruby Flower Shape Necklace Lab Created Oval Cut Ruby & White Lab Created Sapphire Necklace Buy Lab Grown Ruby 75.00 ctw Beaded Necklace in Stainless Steel 18 20 Lab Grown Inverted Pear Ruby Necklace with Lab Diamonds. 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