18ct gold, diamond and opal ring, centring an oval-shaped cabochon crystal opal measuring 18.9 by 11.0 mm, within a single-cut diamond set frame and shoulders, size Q, gross weight approximately 7.3 grams.
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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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