2 LOOSE OPALS READY TO BE JEWELRY: 1) Oval cabochon cut semi-crystal opal, gray body color with harlequin patter. Orange/red primary, blue/green secondary. Weight: 5.25 Ct. Slight crazing on shoulders. 2) Oval cabochon cut semi-crystal opal, gray body color with harlequin patter. Blue/green primary, slight orange/red secondary. Weight: 5.36 Ct.