JDMISGem Reference
Corundum · Corundum

Yellow Sapphire

Yellow Sapphire — Corundum

Yellow sapphire is a bright fancy sapphire coloured by iron or colour centres. Fine unheated Sri Lankan lemon-gold stones are excellent value; beware fading irradiated material and undisclosed beryllium diffusion.

Colour
yellow
Transparency
Transparent
RI
1.762–1.770
SG
3.95–4.10
Mohs
9.0
Birthstone
July · September
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