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- Main Stone
- Australian Opal (18)
- Black Opal (62)
- Black Opals (72)
- Boulder Opal (12)
- Boulder Opals (13)
- Crystal Opal (13)
- Diamond (14)
- Doublet Opals (13)
- Emerald (163)
- Ethiopian Fire Opal (11)
- Fire Opal (11)
- Fire Opals (31)
- Green Opal (16)
- Opal (482)
- Opal Inlay (11)
- Opalite (15)
- Peridot (75)
- Solid Black Opal (11)
- Solid Opal (14)
- Triplet Opals (11)
- Other (1477)
- Metal
- 10k Solid Gold (11)
- 14k Solid Gold (3)
- 14k White Gold (3)
- 14k Yellow Gold (6)
- 18k Gold (3)
- 925 Sterling Silver (4)
- 9ct White Gold (2)
- 9k Gold (5)
- Fine Silver (3)
- Gold (7)
- Platinum (2)
- Platinum Plated (3)
- Rose Gold (45)
- Silver (10)
- Sterling Silver (329)
- Sterling Silver 925 (19)
- Vermeil (2)
- White Gold (142)
- Yellow Gold (641)
- Yellow-gold (4)
- Other (1301)
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