20.30ct Dark Opal Cabochon with Spectral Colors
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A loose opal of 20.30ct, one loose oval cabochon cut and polished dark opal, measuring 25.1 x 15.1 x, 8.22 mm, weighing a known weight of 20.30ct, displaying large rolling blocks, of green and blue spectral colours. Valuation on request.
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- Cabochon Cut in Jewellery - A cabochon cut is a type of gemstone cutting where the stone is cut and polished in a convex shape with a flat bottom and a domed top, with no facets. This type of cut is typically used for opaque or translucent stones that have natural patterns or inclusions that are best displayed in this type of cut. Examples of stones that are often cut as cabochons include turquoise, opal, and moonstone.
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