How to repair opal..?

Can anyone tell my how to repair an opal ring. I am aware (now) that the stone is very fragile, but what happens if the stone has been chipped? I have a large opal ring with quite a big chip in the middle and a thin crack. Is there any way of filling the crack with gel or buffing the stone to get rid of the crack? Also, where would I go to get this done. Would jeweller's do this or just stone specialists? Thanks for your help!

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  • lb2k
    Lv 4
    1 decade ago
    Favorite Answer

    Opal is basically Silica with up to 10% of water (yes - water!)

    Opal is neither hard nor tough. It is only 5.5-6.5 on the hardness scale and may easily be broken as it is also brittle. However, the main problem with Opal is that it is prone to dehydration. This causes some stones to "crack", or as it is termed "craze".

    Very competent scientists are working to stabilise craze-prone Opals and to repair those which are already crazed. However, crazing is currently still irreversible. Once a stone starts to craze, the condition of the stone will only get worse.

    What you may be able to do is to get a jeweler to see if he can contact a specialist to polymer impregnate your Opal to stop further crazing and to repolish it so as to disguise the chip. This may cost as few people opt to "repair" their Opals. You may find it more economical to buy a new Opal for your ring, especially if it is of commercial quality.

    Hope that helps! (P.S. I'm sorry about your Opal! The person who sold it to you should have let you know how to take care of it...What a shame...)

    Source(s): I LOVE gemstones and I teach gemology.
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  • 1 decade ago

    most jewelry repair shop will be able to fix your ring.

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