It seems this item is discontinued, as it no longer appears under its product number. When I purchased it, the salesperson told me it was a diamond. As I have no proof, please refrain from purchasing if you are concerned. The length is approximately 38cm. Returns are not accepted. Material: K10 (10 karat) yellow gold Decoration: Diamond Accessories: Box, purchase certificate Scratches/Discoloration: None Ultrasonically cleaned