tanzanite pear gemstone 11x8mm - Exquisite Quality Gemstonestanzanite pear gemstone 11x8mm Descriptions Discover the beauty of the tanzanite pear gemstone 11x8mm, a rare treasure with stunning hues from Tanzania. Limited supply, exquisite quality! Tanzanite Gemstone is named after Tanzania country where it was first discovered. It is also known to be single generation gemstone as due to limited supply and with the current mining rate it is estimated that only 15 20 years of Tanzanite are left in the ground.