5.5mm Round Cabochon Cut Natural Standard White Opal Gemstone
Browse our selection of standard white natural opal gemstones, known for their captivating colour flashes, outstanding 5.5mm round cabochon cut, and fine polish. We ensure our gemstones are ethically sourced and specifically calibrated by diameter for the jewellery trade.
- Genuine natural white opal
- 5.5mm round cabochon cut
- Beautiful white with iridescent rainbow hues
- Superior cabochon cut and polish
Keep in mind that the images shown are intended to represent the cut and general colour spectrum of the gemstones. As natural products, the precise shade and height of each stone may differ. For orders containing multiple gemstones, we make every effort to select items that closely match in all aspects.
An itemized invoice is provided with each gemstone purchase. Should you or your client require additional certification or a more comprehensive report for an individual gemstone, please consult a reputable and independent laboratory of your preference.
About Opal Gemstones
Precious opals are prized for their striking play of colours on a pale (white opal) or dark (black opal) background. Some white opals exhibit a translucent, milky appearance, which is referred to as opalescence and is distinct from the play of colours.
Opals can undergo a range of treatments, such as staining and resin impregnation, to enhance their appearance. Additionally, composite stones like doublets and triplets can be crafted from multiple pieces.
Opal Testing Techniques
Methods such as observation, refractometers, UV light, and specific gravity testing can be employed to differentiate natural opals from synthetic ones.
Opal Symbolism and Properties
Opal is both an October birthstone and a Libra zodiac gemstone, holding symbolic significance throughout history. Ancient Greeks believed opals endowed the wearer with foresight and prophecy, while Romans considered opals to be symbols of purity and hope. With a hardness of 6, opals are among the softer and more delicate gemstones available.
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