14k yellow gold Onyx; diamonds, approximately 2.8mm 18 ½" chain length, 3mm cable chain link width with 6 - 4mm bezel diamonds Lobster claw clasp closure Marquise pendant measurements: 43mm x 20mm - double diamond halo One of a Kind WEB EXCLUSIVE - This design is not available in any other retail locations. Designed and handmade in California Style number: SNG00182