iolite
Iolite is a light violet blue gemstone which looks like a light blue sapphire. It has an interesting property. An iolite has different colors depending on the direction in which you look at it.
The vikings used thin slices of iolite as polarizing filters to help them navigate while out at sea.
Iolite is the anniversary stone for the 21st wedding anniversary.

Iolite Birthstone Earrings, 14K Gold Bezel
Iolite Birthstone Earrings, 14K Gold Bezel Iolite is a beautiful violet blue to purplish colored gemstone. It has strong pleochroism, meaning the gemstone changes colors depending on which angle it is viewed from. The basket bezel studs contain two genuine 4mm round iolite gemstones and are set in 14K polished solid yellow gold. The iolite earrings contain traditional butterfly, secure friction backs. The perfect addition to any jewelry lover's collection!

Iolite 14K White Gold Leverback Earrings
Iolite 14K White Gold Leverback Earrings Iolite is a beautiful violet blue to purplish colored gemstone. It has strong pleochroism, meaning the gemstone changes colors depending on which angle it is viewed from. The leverback earrings contain two genuine 5MM bezel set round iolite gemstones. The earrings are set in cool, gleaming 14K polished solid white gold. The length is 5/8" (16mm) and the width is 7/16" (11mm). These 14K white gold leverback earrings are the perfect finishing touch to any outfit!