11.27 ct roughly rubbed black opal piece 17mm across Bill

2.50 ct crystal opal 13x10x3mm

5.49 ct semi black opal 13.5x12.5x5mm

17.18 ct crystal opal 30x23x5mm

silver opal doublet pendant

2.14 ct crystal opal 10.5x7x5mm

14 kt boulder opal bead earrings

2.49 ct crystal opal 12x9x4mm

1.06 ct crystal opal 10.5x6x2.5mm

6.33 ct crystal opal 14x10x7mm

12.65 ct rough opal 21mm

3.18 ct crystal opal 12x9x4.5

3.38 ct rough opal 12mm