Stars Are Out in Paraíba Tourmaline
Rare material from Brazil features four-ray stars under point-source light.
“Dragon’s Eye” Fire Agate
A Mexican fire agate cabochon’s coloration and structure combines to create an unusual visual effect.
Parisite in Colombian Quartz
Rare material found as inclusions in quartz is thought to have formed simultaneously with the host.
Red Heart Inclusion in Diamond
Under magnification, a round brilliant diamond features a pyrope garnet inclusion in an aesthetically pleasing shape.
Violetish Blue Spinel in Yellow Sapphire
A singly refractive inclusion within a yellow sapphire proves to be spinel.
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