Top Gem Rainbow Crystal Boulder Opal 3.6 ct
Natural Solid Untreated Australian Boulder Opal Polished Stone
Weight: 3.6 carats
Dimensions: 10x9x5 mm
Source: Winton, QLD, Australia
Size and weight are approximate
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7 day return and refund policy.
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We offer a lifetime guarantee for natural cracks that may form in our opals. There is a very low chance that this can happen, however occasionally it might. Our guarantee excludes any opals sold with existing fractures.
Please view our Terms and Conditions.
Australian Opals do not change their appearance after exposure to heat / climate / humidity / water.
An Australian Opal will not be damaged when exposed to light chemicals such as dishwashing detergent or hand soap. You should not however expose your opal to hasher chemicals such as bleach or ammonia.
They are however susceptible to cracking it knocked hard enough. If wearing your opal set in a ring you should always be careful that it is not knocked during physical activities.
If undertaking some form of sport or manual labour, please take off your ring so that it is not damaged.