56.80 ct Natural Boulder Opal

Oval -Brazil

No Reserve! Title: 70.44 ct Natural Boulder Opal Color/Clarity: Opaque Gemstones: Gemstones Carat Weights: 70.44 Size/Dimensions: 45.05 x 30.45 x 6.00 Additional Information: Oval - Australia Shipping

Oval-Australia

No Reserve! Title: 37.38 ct Natural Boulder Opal Color/Clarity: Brown / Opaque Gemstones: Boulder Opal Carat Weights: 37.38 Size/Dimensions: 32.80 x 18.70 x 8.50 Additional Information: Pear / Austral

No Reserve! Title: 85.55 ct Natural Boulder Opal Color/Clarity: Opaque Gemstones: Gemstones Carat Weights: 85.55 Size/Dimensions: 39.55 x 31.85 x 6.50 Additional Information: Oval - Australia Shippi

Fancy-Australia

Rectangular - Africa

Pear-aAustralia

Oval-Australia

No Reserve! Title: 12.45 ct Natural Boulder Opal Color/Clarity: Opaque Gemstones: Loosegemstone Carat Weights: 12.45 Size/Dimensions: 19.90 x 16.65 x 3.95 Additional Information: Rectangle - Brazil Sh

Triangle - Africa

Triangular-Australia

Long Octagan-Australia

Rectangular-Australia

Pear-Australia

Pear-Australia

Round-Australia

Pear-Australia

Rectangular-Australia

No Reserve! Title: 27.50 ct Natural Boulder Opal Color/Clarity: Opaque Gemstones: Gemstones Carat Weights: 27.5 Size/Dimensions: 23.80 x 19.40 x 5.55 Additional Information: Rectangular - Australia Sh

No Reserve! Title: 46.35 ct Natural Boulder Opal Color/Clarity: Opaque Gemstones: Gemstones Carat Weights: 46.35 Size/Dimensions: 36.25 x 22.55 x 7.45 Additional Information: Oval - Australia Shipping

Oval-Australia

Pear-Australia

Oval-Australia