Orecchini a cerchio con tanzanite passante in oro bianco da 9 ctDainty and petite 9ct white gold pull through earrings ended with beautiful violet tanzanite gemstones. Designed to slide through pierced ears with ease for a chic and understated look. Gemstone Information Tanzanite is named after the only place in the world where it is found, Tanzania. Flaunting beautiful blue and purple colours, tanzanite is a must for gem lovers and collectors. As a birthstone, tanzanite represent December birthdays.