Searching for Loose Gemstones?
New and used Opal in the UK at the best prices
To find out more about Loose Gemstones, click on the 'view arrow' next to each item below. A new window will open and you'll be able to get yourself a real bargain.The mineraloid opal is amorphous SiO2·nH2O; hydrated silicon dioxide, the water content sometimes being as high as 20% but is usually between three and ten percent. Opal ranges from colorless through white, milky blue, gray, red, yellow, green, brown and black. Common opal is truly amorphous, but precious opal does have a structural element. The word opal comes from the Sanskrit upala, the Greek opallios, and the Latin opalus, meaning "precious stone." Opal is a mineraloid gel which is deposited at relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, and basalt. Opal is one of the mineraloids that can form or replace fossils. Courtesy of Wikipedia
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| Description | Price | Ends | ||
| MULTI COLOR SPARKS UNHEATED 12.65CTS AUSTRILA OPAL CVDO | £32.57 | 01 December @ 17:06:58 |
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| 8.64 ct. Charming Natural Top Yellow OPAL Unheated NR! | £1.49 | 01 December @ 17:06:58 |
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| 0.99ct. Fantastic Gem Natural Multi-Color OPAL Unheated | £2.16 | 01 December @ 17:12:59 |
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| 39.50CT. HUGE AAA RAINBOW LIGHTNING BOULDER OPAL CAB | £3.58 | 01 December @ 17:22:00 |
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| 20.85CT. RARE BLUE IRIDESCENCE BLACK BOULDER BLACK OPAL | £10.10 | 01 December @ 17:26:00 |
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| 4.94 ct. Pretty Gem Natural White OPAL Mexico Unheated | £1.24 | 01 December @ 17:37:00 |
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| 13.55 ct. Beautiful Clean Natural Yellow OPAL Mexico | £1.47 | 01 December @ 17:57:01 |
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| great mexican OPAL 5,79 cts | £4.99 | 01 December @ 19:15:01 |
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| great round mexican FIREOPAL top colour 0,68 cts | £9.99 | 01 December @ 19:16:01 |
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| great mexican FIREOPAL DOLPHIN 2,50 cts | £9.99 | 01 December @ 19:21:01 |
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