Tanzanite

Tanzanite is a rare blue to violet-blue gem variety of zoisite, prized for its vivid coloration and pronounced pleochroism, which causes crystals to display different hues of blue, violet, and occasionally reddish-brown depending on the viewing angle. Its distinctive colour is attributed to trace amounts of vanadium within its chemical composition, with heating commonly used to enhance the blue-violet tones. Tanzanite was first discovered in the Merelani Hills of northern Tanzania in 1967, the only known commercial source of this highly sought-after material. Explore our selection of genuine tanzanite specimens for your collection.