This is a platinum necklace featuring a rare black opal that displays a beautiful orange color. The large opal is surrounded by diamonds, making it very lovely. Chain length: approximately 40cm Head: Length approximately 3cm Width: 1.4cm Please allow for some minor discrepancies. Markings: Head - Pt900 Markings: Chain - Pt850 Opal: 255 D038 Please review the profile before making a purchase comment. m(__)