This is a beautiful large 40.50 carat swiss blue topaz necklace. The setting and chain are both made from 925 sterling silver.40.50 Carat Topaz Necklace$850.00PriceOut of StockProduct InfoGemstone: Topaz Gemstone Size: 21 mm x 18 mm Natural/Lab-Made: Natural Necklace Length: 18 inches Material: 925 sterling silver Shipping InfoThis item ships within 1-2 days of ordering.