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Gem Quality Lightning Ridge Black Opal in an 18ct Gold Ring, probably circa 1930, and made in Australia | Collectors Weekly
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Lightning Ridge Solid Black Opal & Diamond Ring set in 18K Gold | Australian Opals | Shop Opal and Diamond Jewellery Australia
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AUSTRALIAN LIGHTNING RIDGE BLACK OPAL AND DIAMOND RING – 50 Henley St Diamond and Watch Merchants Ltd
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Black Opal Ring, Lightning Ridge Opal Engagement Ring, Oval Rainbow Opal Ring With Micropave Diamond Band Half Eternity - Etsy
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