What Is Tanzanite? The tanzanite stone has been described by Tiffany & Co. as “the most beautiful blue stone discovered in 2000 years.” It’s extremely rare, fairly newly discovered, and highly valued by investors and collectors who love to collect. A Rare Blue Stone New To The Market Compared to other gemstones mined worldwide, Tanzanite is mined from a single source in Tanzania, Africa, close … Continue reading What Is Tanzanite? Tanzanite Rings, Meaning, Color, Price, And Healing Properties.