Sterling silver / sterling silver with black rhodium finish Black diamonds, approximately 1.12 carats / white diamonds, approximately 0.79 - 1.91 total carats Necklace length: 20" inches - cable chain 7.9mm thick Front facing 16mm donut hinge clasp - diamonds on 1 side Pendant measurements: 35mm x 32mm Designed and hand made in California Style number: NBLK0073