Dark Blue Cabochon Sapphire - Cobalt Treated

An unset 18.79 cabochon blue sapphire, 14.49 x 13 x 8.49, dark…
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An unset 18.79 cabochon blue sapphire, 14.49 x 13 x 8.49, dark blue, cobalt glass treated.

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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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