Iolite. (7.6ct) 13.8mm Trillion buying Cut 8.2mm Deep Australian Purple/Brown natural Iolite gemstone. Large ring or pendant Stone.

Natural Iolite Gemstone. (7.6ct)

13.8mm trillion cut sparkling purple/brown Natural Gemstone.

Affordable Natural Gemstone - unheated no treatment and cut in house.

Precision cut natural gemstone as pictured.

These gemstones available with a certificate buying of valuation by a third party registered gemstone valuer.

Guaranteed genuine natural Purple Australian Gemstone.

Inclusion visible under 12x magnification.

100% money guarantee on this gemstones quality and authenticity.

Affordable natural Australian gemstones.

Iolite
Color: blue, violet-blue
Hardness: 7 - 7.5
Refractive index: 1.52 - 1.56
Density: 2.53 - 2.78
Chemical composition: Mg2Al3(AlSi5O18)
Crystal structure: orthorhombic