174 ct rough opal parcel 18pc for intermediate opal cutters

4.41 ct semi black opal 14.8x12x4mm

3.22 ct gem flag harlequin pattern black opal 12x9x4.5mm

1.84 ct high domed gem black opal 9x7x5mm

3.10 ct drop shape black opal 11.5x9.5x4.5mm

11.71 ct black opal 21.5x15x5mm

4.63 ct black opal 14x9x6mm

5.49 ct semi black opal 13.5x12.5x5mm

2.78 ct black opal 11.5x10x4mm

2.13 ct light opal 11x8x3.5mm

1.89 ct black opal gem 10x6x4mm

3.18 ct crystal opal 12x9x4.5

1.06 ct crystal opal 10.5x6x2.5mm