Necklace is an Opmega 18K yellow gold chain. Also included. Origin: Oregon/Tahiti Gem Type: Sunstone/Pearl Color: Multi Colored/Green/Purple Metallic Shape: Oval/Round Cut: Checkered crown/Round Size (mm): 22x13x7/8.3 Weight (ct): 10.85/apprx 5 Grade*: AAA/? Clarity**: VS/? Lustre: Schiller/Metallic MOHS Hardness: 6.5-7/7/ Treatment: Non-treated/Non-Treated GbG ID: S30PKP Pendant & Necklace only See S1801EKP for matching Earrings To learn more about Sunstone Grading System