Opal is a form of silicon dioxide in which many colours, caused by reflections from microcrystalline silica spheres, may be seen when it is turned in the light. Opal is divided into two types – black or white – according to the background colour of the stone. It’s value is determined by the brilliance of the colour, the absence of dead spots and flawlessness. Black opal is considered the finest and those with an abundance of red are the most valuable. Opals which are strong in green and blue are not as rare.
Opal was thought to be a bad omen yet to be a symbol of fidelity and to have the ability to cure diseases of the eye.
Opals tend to dry and crack and benefit from an occasional coating with olive oil.
Opal jewellery available now
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ARTISAN VINTAGE STERLING SILVER GENUINE OPAL RING SIZE 6.5 STAMPED
on August 5, 2020 at 3:09 am
AU $59.00 (0 Bids)End Date: Wednesday Aug-12-2020 13:09:25 ESTBid now | Add to watch list
1970 Vintage Delicate OPAL Necklace. Absolutely STUNNING Piece Of Jewelry! ❤️
on August 4, 2020 at 12:12 pm
AU $63.95End Date: Friday Sep-4-2020 22:12:39 ESTBuy It Now for only: AU $63.95Buy It Now | Add to watch list
Vintage Jewellery White Gold Opal Earrings Ear Rings Antique Deco Jewelry
on August 4, 2020 at 11:38 am
AU $195.00End Date: Friday Sep-4-2020 21:38:44 ESTBuy It Now for only: AU $195.00Buy It Now | Add to watch list
Vintage Brooch With Small Opal Setting
on August 4, 2020 at 9:30 am
AU $35.00 (0 Bids)End Date: Tuesday Aug-11-2020 19:30:07 ESTBid now | Add to watch list
BULK LOT Deceased Estate Mixed Jewellery White Opal Rhinestones Enamel MOP .
on August 4, 2020 at 6:35 am
AU $15.00 (1 Bid)End Date: Tuesday Aug-11-2020 16:35:53 ESTBid now | Add to watch list