Tanzanite Engagement Rings

Learn about Tanzanite

Tanzanite is very rare and can only be found in the hills of Merelani in northern Tanzania. Consequently there is only enough tanzanite in the ground to last another twenty years. Tanzanite has a Mohs hardness of 6.5 to 7 and is considered durable enough to be worn in most types of jewellery. The dark blue stone is often mistaken for sapphire and generally the larger the tanzanite, the deeper the colour. Tanzanites are routinely heat treated to produce their colour. It should be assumed that tanzanites that we supply have been heat treated unless specified otherwise. Find out more....