Benitoite

Benitoite is one of the most beautiful rare gemstones. Sapphire Blue color and Diamond like dispersion combine to make Benitoite a spectacular gemstone. Unfortunately it is very rare. Benitoite is the state gemstone for California, its source. Commercial mining for Benitoite ended in July of 2006. Benitoite has a hardness of 6-6.5 making it suitable for jewelry.