Gemmology
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Sapphire — specimen 0640, photo © NMNHS
Sapphire — specimen 0640, photo © NMNHS

Sapphirespecimen 0640

Origin

East Africa
Madagascar
Sapphire — specimen 0640, locality map
Data

Weight: 0.20 ct; size: 4.01 | 3.46 | 2.11 mm; shape: hexagon; colour: medium light yellowish green; slightly greyish; clarity: slightly included; cut: excellent; treatment: none.
Notes

Slightly included specimen; design ‘Hexamixtum S 41-32’ [crown angle changed to 21.00], excellent cut by Tan Pen.

Other specimens
Sapphire — specimen 0263Sapphire — specimen 0326Sapphire — specimen 0668Sapphire — specimen 0646Sapphire — specimen 0505Sapphire — specimen 0223Sapphire — specimen 0364Sapphire — specimen 0148

More information from ‘Classification’


Most commonly refers to a blue gem variety of corundum, but other coloured varieties of corundum are also described as sapphire, except the natural red.