Loose Crystal Boulder Opal
Loose crystal boulder opals exhibit an elegant, glassy depth where brilliant, neon spectral colors appear to float in a translucent silica layer directly above natural ironstone. Sourced directly from Queensland mines, these single loose stones combine the luminous clarity of crystal with the structural durability of an ironstone base. Every loose crystal boulder opal in our collection is solid and untreated.
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36.28ct Top Gem Crystal Boulder Opal Heart
Original price was: AU$13,148.AU$6,378Current price is: AU$6,378.
Purple Winton Crystal Boulder Opal for Pendant 31.95 ct
Original price was: AU$13,046.AU$6,378Current price is: AU$6,378.
20.75ct Crystal Boulder Opal
AU$1,740
4.45ct Crystal Boulder Opal
AU$1,377
7.22ct Crystal Boulder Opal
AU$1,087
Crystal Opal 1.07ct
AU$725
Translucent Elegance on a Sturdy Natural Backing
Mined in the Queensland boulder fields, these single loose stones combine the clarity of crystal with the strength of a dark ironstone base. Check our opal certificates page to review professional gemological validation.10
Frequently Asked Questions
What is a loose crystal boulder opal?
It is a single unset crystal boulder opal gemstone, ready for custom jewelry mounting or collecting.
How is crystal boulder opal different from standard boulder opal?
Crystal boulder forms primarily in light sandstone cavities, creating a transparent, glassy appearance.
What setting works best for crystal boulder opal?
Bezel settings in yellow gold or platinum trap light to enhance internal depth and color brilliance.