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Gem-Grade Australian Opals

Gem is the grade we reserve for stones whose brightness and pattern put them above A$2,000 per carat — the material that makes an heirloom rather than an ornament.

Per-carat price is the great leveller in opal: a small stone of blazing fire can outrank a large dull one many times over. Our buying guide explains how brightness, pattern and body tone set value.

24 stones live in this category right now.

3.96ct SOLID OPAL stock 231070

#231070 · SOLID OPAL
3.96 ct
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8.14ct SOLID OPAL stock 230522

#230522 · SOLID OPAL
8.14 ct
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4.71ct SOLID OPAL stock 252631

#252631 · SOLID OPAL
4.71 ct
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9.1ct SOLID OPAL stock 230800

#230800 · SOLID OPAL
9.10 ct
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5.07ct SOLID OPAL stock 232522

#232522 · SOLID OPAL
5.07 ct
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0.75ct SOLID OPAL stock 252509

#252509 · SOLID OPAL
0.75 ct
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7.93ct SOLID OPAL stock 230521

#230521 · SOLID OPAL
7.93 ct
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2.07ct SOLID OPAL stock 252976

#252976 · SOLID OPAL
2.07 ct
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5.84ct SOLID OPAL stock 252638

#252638 · SOLID OPAL
5.84 ct
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4.23ct SOLID OPAL stock 252780

#252780 · SOLID OPAL
4.23 ct
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19.29ct SOLID OPAL stock 242818

#242818 · SOLID OPAL
19.29 ct
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8.95ct SOLID OPAL stock 252517

#252517 · SOLID OPAL
8.95 ct
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4.16ct SOLID OPAL stock 252273

#252273 · SOLID OPAL
4.16 ct
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9.57ct SOLID OPAL stock 252390

#252390 · SOLID OPAL
9.57 ct
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11.28ct SOLID OPAL stock 288119

#288119 · SOLID OPAL
11.28 ct
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1.98ct SOLID OPAL stock 230736

#230736 · SOLID OPAL
1.98 ct
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2.63ct SOLID OPAL stock 252776

#252776 · SOLID OPAL
2.63 ct
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11.35ct SOLID OPAL stock 252637

#252637 · SOLID OPAL
11.35 ct
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15.2ct SOLID OPAL stock 230518

#230518 · SOLID OPAL
15.20 ct
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23.85ct SOLID OPAL stock 288163

#288163 · SOLID OPAL
23.85 ct
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1.16ct SOLID OPAL stock 252650

#252650 · SOLID OPAL
1.16 ct
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7.73ct SOLID OPAL stock 230211

#230211 · SOLID OPAL
7.73 ct
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3.97ct SOLID OPAL stock 252532

#252532 · SOLID OPAL
3.97 ct
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5.37ct SOLID OPAL stock 252518

#252518 · SOLID OPAL
5.37 ct
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