Bright Blue 11.41ct Quilpie Boulder Opal Stone

Seven Inch Polished Quilpie Boulder Opal Specimen

Handmade Hammered Boulder Opal Solitaire Ring | Burton's

Exceptionally Bright Quilpie Boulder Opal Boomerang Stone

Rough Quilpie Boulder Opal Specimen Burton's – Burton's Gems and Opals

Australian Boulder Opal:, Weight (carats), 12.94cts, Dimensions (millimeters), 24.74mm x 13.33mm x 5.17mm, Origin, Quilpie Mining District,

12.94ct Quilpie Boulder Opal Stone | #16

55.41ct Triangular Cut Boulder Opal Stone

Polished Australian Boulder Opal Stone for Sale

11.41ct Australian Boulder Opal Stone

Exceptionally Bright 30.10ct Quilpie Boulder Opal Stone

11.41ct Australian Boulder Opal Stone

Australian Boulder Opal:, Weight (carats), 8.72cts, Dimensions (millimeters), 19.15mm x 13.19mm x 7.38mm, Origin, Quilpie Mining District, Queensland,

8.72ct Quilpie Boulder Opal Boomerang Stone | #24

Australian Boulder Opal:, Weight (carats), 1,689cts, Dimensions (inches), 4.25 x 2.6 x 1, Origin, Quilpie Mining District, Queensland, Australia,

1689ct Quilpie Boulder Opal Specimen | #50

Bright 12.94ct Rainbow Quilpie Boulder Opal Stone

Australian Boulder Opal:, Weight (carats), 1,915.64cts, Dimensions (inches), 7.25 x 2 x 1.25, Origin, Quilpie Mining District, Queensland,

1,915ct Quilpie Boulder Opal Specimen | #7