Metal: 18k Recycled Gold Plating on Brass Gemstone: Dyed Green Quartz, Dyed Calcite, Green Aventurine, Pearl & White TopazS/MChain Length: 7.2inch with extension links from 6.2inch to 7.2inch. Weight: 7.62gM/L Chain Length: 8.4inch with extension links from 7.4inch to 8.4inchWeight: 8.37g Cultured freshwater pearls are sourced by our Responsible jewelry Council certified suppliers. Every pearl is naturally unique in its irregularity; imperfections are here to be celebrated. Product Code: HR-G-B7-AMZ-GAPlease note: Our gemstones are naturally sourced and may vary in color.