Star sapphire, 22.41 carat, cabochon cut

Sapphire – the star attraction

One of the most fascinating and rare varieties of sapphire is the so-called “star” sapphire. This member of the corundum family exhibits a clear star shape (or asterism) under certain lighting conditions. When viewed using a strong source of direct light (such as a torch or penlight), a six-ray star will appear on the surface […]