A loose unheated sapphire, of basaltic origin, probably Thailand, of intense saturation and medium tone. Round mixed cut, weighing 3.70 carats, measuring 8.41 - 8.63 x 6.62 mm.
A fine example of a sapphire from a basaltic geological source which have a deeper tone than stones from other origins. Of an ‘Oxford Blue’ coloration! Colour banding can be observed only from its side and light ‘silk’ inclusions barely seen with a 10x lens.
A loose unheated sapphire, of basaltic origin, probably Thailand, of intense saturation and medium tone. Round mixed cut, weighing 3.70 carats, measuring 8.41 - 8.63 x 6.62 mm.
A fine example of a sapphire from a basaltic geological source which have a deeper tone than stones from other origins. Of an ‘Oxford Blue’ coloration! Colour banding can be observed only from its side and light ‘silk’ inclusions barely seen with a 10x lens.
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