3.5mm Round Cabochon Cut Natural Standard White Opal Gemstone | Jewellery Trade Resources

Sale price£2.80


3.5mm Round Cabochon Cut Natural Standard White Opal Gemstone

Explore our selection of standard white natural opal gemstones, featuring a 3.5mm round cabochon cut and a polished finish. We ensure that our gemstones, calibrated by diameter, are sourced exclusively from ethical suppliers for the jewellery trade.

  • Authentic natural white opal
  • 3.5mm round cabochon cut
  • Vibrant white with iridescent rainbow colour flashes
  • Expertly cut and polished cabochon

Note that the images provided serve as an illustration of the cut and general colour range. As gemstones are natural products, their exact shade and height may vary. When ordering multiple gemstones, we make every effort to select the most closely matched items in all aspects.

A detailed invoice accompanies each gemstone purchase. Should you or your client require further certification or a more comprehensive report for an individual gemstone, you can obtain one from an independent laboratory of your choice.

About Opal Gemstones

Precious opals are celebrated for their striking play of colours on either 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.

Opal Treatments

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 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, an October birthstone and a Libra zodiac gemstone, has a rich history of symbolism. Ancient Greeks believed opals granted foresight and prophecy, while Romans associated them with purity and hope. With a hardness of 6, opals are among the softer and more delicate gemstones available.

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