.9ct Songea Sapphire, Color Change
.91ct Unheated Color Change Sapphire, Green-Blue-Grey-Lavender, from Songea Tanzania
“Hearts and Arrows” Round Cut in the USA by Daniel O’Neil
6.0 x 3.7mm
A bewitching Songea Sapphire, Unheated and precision cut for maximum scintillation! Color shifts constantly, from Light to Medium Blue, Green, Charcoal Grey, or Metallic Lavender under warm or fluorescent lighting. Shows lighter outdoor and darker indoors. This fascinating gem material is not only color-changing, but visibly dichroic so that different colors dominate at different viewing and lighting angles. A constantly shifting light show, in crystal form!