Answer (1 of 5): Opals are prone to scratches especially on a ring rather than a pendant or earrings, as they are far softer than say Sapphire. But a decent jeweller can get it re-polished.
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How to purchase gold and diamond opal rings - Quora
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What is the life of opal gemstone. Can I frequently remove opal ring and wear it back? - Quora
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What is the benefit of opal stones? - Quora