22.41ct Quilpie Boulder Opal Stone | #18

Australian Boulder Opal:, Weight (carats), 22.41cts, Dimensions (millimeters), 24.85mm x 16.44mm x 6.91mm, Origin, Quilpie Mining District,

Australian Boulder Opal:, Weight (carats), 20.87cts, Dimensions (millimeters), 35.21mm x 14.48mm x 5.29mm, Origin, Quilpie Mining District,

20.87ct Quilpie Boulder Opal Stone | #2

Flow Pattern Quilpie Boulder Opal Stone

Australian Boulder Opal:, Weight (carats), 64.11cts, Dimensions (millimeters), 35.88mm x 22.63mm x 10.53mm, Origin, Quilpie Mining District,

64.11ct Quilpie Boulder Opal Stone | #22

Loose Pear Cut Australian Boulder Opal Stone

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

172.75ct Quilpie Boulder Opal Stone | #8

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Quilpie Boulder Opal Drop Pendant Stone

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32.21ct Loose Quilpie Boulder Opal Stone

Purple Pear Shaped Australian Boulder Opal

32.21ct Loose Quilpie Boulder Opal Stone

32.21ct Loose Quilpie Boulder Opal Stone

Quilpie Boulder Opal Drop Pendant Stone | Burton's

Bright Blue 11.41ct Quilpie Boulder Opal Stone

Australian Boulder Opal:, Weight (carats), 11.41cts, Dimensions (millimeters), 23.87mm x 7.06mm x 6.91mm, Origin, Quilpie Mining District, Queensland,

11.41ct Quilpie Boulder Opal Stone | #15