172.75ct Quilpie Boulder Opal Stone | #8

Australian Boulder Opal:, Weight (carats), 172.75cts, Dimensions (millimeters), 51.92mm x 35.71mm x 12.97mm, Origin, Quilpie Mining District,

1+ Pound Quilpie Boulder Opal Stone, Blue & Green Fire

Australian Boulder Opal:, Weight (carats), 23.82cts, Dimensions (millimeters), 30.19mm x 13.59mm x 7.3mm, Origin, Quilpie Mining District, Queensland,

23.82ct Quilpie Boulder Opal Stone | #32

Australian Boulder Opal:, Weight (carats), 20.36cts, Dimensions (millimeters), 27.67mm x 14.99mm x 5.46mm, Origin, Quilpie Mining District,

20.36ct Quilpie Boulder Opal Stone | #40

Seven Inch Polished Quilpie Boulder Opal Specimen

59.78ct Pear Shaped Loose Boulder Opal Stone

Polished 11.95ct Boulder Opal Wedge Burton's – Burton's Gems and Opals

Australian Boulder Opal:, Weight (carats), 33.18cts, Dimensions (millimeters), 38.63mm x 18.1mm x 6.74mm, Origin, Quilpie Mining District, Queensland,

33.18ct Quilpie Boulder Opal Stone | #45

Loose 25.97ct Quilpie Boulder Opal Boomerang Stone

151.32ct Loose Purple Boulder Opal Stone

23.82ct Natural Quilpie Boulder Opal Stone

Loose Quilpie Boulder Opal Stone for Sale

Australian Boulder Opal:, Weight (carats), 130.64cts, Dimensions (millimeters), 62.49mm x 35.57mm x 10.81mm, Origin, Quilpie Mining District,

130.64ct Quilpie Boulder Opal Stone | #48