Blue opal
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Dark blue opal rub. Lightning Ridge, Australia.
This opal is a rub. This means that is has been semi-polished and shaped to bring out the colour of he opal, but has not had work done to it to give it a final polish. It has dark grey potch on the back. This is suitable for jewellery making or a craft project.
4.95 ct. This item comes in a presentation box with an information card.