2.5mm Round Cabochon Cut Natural Standard White Opal Gemstone
Uncover our selection of standard white natural opal gemstones, showcasing a refined 2.5mm round cabochon cut and polished surface. Sourced exclusively from ethical suppliers, our gemstones are calibrated by diameter to cater specifically to the jewellery trade.
- Authentic natural white opal
- 2.5mm round cabochon cut
- Lustrous white with captivating rainbow colour flashes
- Expert cabochon cut and polish
Please note that the images shown represent the cut and general colour variation. Since each gemstone is a natural product, exact shade and height may differ. For orders of multiple gemstones, we diligently select the closest matching pieces in all aspects.
Each gemstone purchase comes with a detailed invoice. Should you or your client need further certification or a comprehensive report for an individual gemstone, a trusted and independent laboratory of your choice can provide it.
About Opal Gemstones
Precious opals exhibit a dazzling play of colours on either a pale (white opal) or dark (black opal) background. Some white opals possess a translucent milky appearance, referred to as opalescence, distinct from the play of colours.
Opals may undergo various treatments, such as staining and resin impregnation, to enhance their appearance. Composite stones, like doublets and triplets, can also be fashioned from multiple pieces.
Opal Testing Techniques
Distinguishing natural opals from synthetic ones can be achieved using observation, refractometers, UV light, and specific gravity testing.
Opal Symbolism and Features
Opal, an October birthstone and Libra zodiac gemstone, has been revered throughout history. The ancient Greeks believed opals bestowed the powers of foresight and prophecy, while the Romans considered them symbols of purity and hope. With a hardness of 6, opals are among the softer and more delicate gemstones available.
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