Pink Green Yellow Banded Tourmaline 2mm Faceted Round - 15-16 Inch R1766 Sardonyx is sometimes treated to

Sardonyx is sometimes treated to bring out its reddish tones

an opaque silicon dioxide mineral and form of microcrystalline Chalcedony

with a Mohs Hardness of 8

Blue Tiger Eye is a naturally occurring dark stone with chatoyant layers that create a flash which seems to emanate from within the stone as they catch the light

natural Sleeping Beauty Turquoise continues to rise in value

Pink Green Yellow Banded Tourmaline 2mm Faceted Round - 15-16 Inch R1766 Sardonyx is sometimes treated toTourmaline is classified as a semiprecious stone and occurs in a vast array of colors, everything from colorless to black, from pastel to bright to dark. It can even exhibit various colors within the same specimen. Its name derives from the Sinhalese word turamali, which translates to stone of many colors. Due to this variety of colors, Tourmaline has often been confused with other stones. Many stones in the Russian crown jewels from the 17th century