'Iron & titanium give this corundum gem its rich translucent blue color'
Sapphire
GEMS & JEWELS: Iron & titanium give this corundum gem its rich translucent blue color
Iron & titanium give this corundum gem its rich translucent blue color
Iron & titanium give this corundum gem its rich translucent blue color
GEMS & JEWELS
Sapphire
GEMS & JEWELS