6mm Round Cabochon Cut Natural Standard White Opal Gemstone
Discover our selection of standard white natural opal gemstones, renowned for their stunning colour flashes, superior 6mm round cabochon cut, and expert polish. Our gemstones are ethically sourced and meticulously calibrated by diameter, making them perfect for the jewellery trade.
- Genuine natural white opal
- 6mm round cabochon cut
- Lustrous white with captivating rainbow colours
- High-quality cabochon cut and polish
Kindly note that the images showcased are a representation of the gemstone's cut and range of colours. Due to the natural origin of each gemstone, the exact shade and height may vary. When ordering multiple gemstones, we make every effort to select items that closely resemble one another in all aspects.
An itemized invoice is provided with each gemstone purchase. If you or your client requires additional certification or a comprehensive report for an individual gemstone, please contact an independent laboratory of your choosing.
About Opal Gemstones
Precious opals exhibit a striking play of colours on a pale (white opal) or dark (black opal) background. White opals, in particular, may display a translucent, milky appearance known as opalescence, which is distinct from their play of colours.
Treatments for Opals
Opals can undergo various treatments, such as staining and resin impregnation, to enhance their appearance. Composite stones, like doublets and triplets, can also be created using multiple pieces.
Methods of Opal Testing
Various techniques, including observation, refractometers, UV light, and specific gravity testing, can help distinguish natural opals from synthetic ones.
Symbolism and Properties of Opals
Opal is an October birthstone and a zodiac gemstone for Libra, carrying historical and symbolic significance. The ancient Greeks believed opals bestowed powers of foresight and prophecy, while Romans regarded opals as symbols of purity and hope. With a hardness of 6, opals are among the softer and more delicate gemstones available.
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