Collection: Birthstone Collection Style: Halo Metal: Sterling Silver Stone: (1) Round Lab Grown Opal (12) Round White Zircons Total Carat Weight: 0.08 (Excluding Lab Grown Opal) Setting: Prong Length: 17.5 Inches Center Dimension (Without Bail): 6.75mm (Approximately 1/4 In) Vendor Style No.: S451608PWLO