Caring for opal jewelry
Last reviewed
Can opal get wet?
Solid Australian opal: yes. Rain, dishes, the ocean: water won't hurt the stone (hot spa water and harsh chemicals are another matter, mostly for the metal's sake).
Doublets and triplets: no. They're layers glued together, and prolonged soaking clouds the glue line permanently. Hydrophane (Ethiopian) opal: also no, it drinks water and can change. This single question is why we state 'solid opal' on every certificate — and why construction is the first thing to check anywhere you shop.
Cleaning opal jewelry
Warm water, a drop of mild dish soap, a soft cloth or a very soft toothbrush around the setting. Rinse, pat dry. That is the whole method and it works on every solid opal ever cut.
Never an ultrasonic cleaner. The vibration is exactly the kind of stress opal doesn't tolerate, and on a doublet or triplet it will separate the layers outright — most jewelers' bench policy is no opal in the tank, ever. No steam cleaners. No bleach, no acetone, no jewelry dip: they attack the metal and can leave residue in the natural texture of the stone.
If a stone looks dull rather than dirty, it isn't dirty. That's surface abrasion from ordinary wear, and it re-polishes out completely on a solid stone.
Storage
A soft pouch in a drawer. Opal is around 5.5–6.5 on the Mohs scale (harder than glass, softer than sapphire), so the only real hazard in a jewelry box is other jewelry — a diamond or sapphire rubbing against an opal in the same compartment will win.
Long-term storage needs nothing special: no oil, no water glass, no damp cotton wool. Those are folk remedies for hydrophane material and crazing, and Australian opal has neither problem. A dry drawer at room temperature is exactly right. Avoid a car glovebox in summer — rapid temperature swings are the one environmental thing worth caring about.
Wearing it
Rings take the most knocks, so take yours off for the gym and the garden. Pendants and earrings can live on you. If a stone ever dulls from surface scratches, a re-polish brings the fire back, and we do that free for stones we cut.
If the ring is going to be worn every day for decades — an engagement ring, say — the setting matters more than the care routine. That argument is made properly in the opal engagement ring guide.
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