0.92 cts Tanzanite

Tanzanite is found in a single, remarkably small mining zone near Mount Kilimanjaro in Tanzania — an area estimated to be just a few square kilometres in size. With no other known deposit anywhere in the world, geologists believe the existing supply could be exhausted within decades. This singular origin, combined with its extraordinary trichroic colour play — shifting between blue, violet, and burgundy depending on the angle of light — makes every Tanzanite a genuinely irreplaceable piece of natural history.

Heat treatment is the universally accepted and standard practice for Tanzanite, and virtually all Tanzanite on the market — including stones of the finest quality — has undergone this process. In its natural rough state, Tanzanite often appears brownish; gentle, controlled heating transforms it into the vivid blue-violet hue it is celebrated for. This treatment is considered permanent and stable, and it does not diminish the gemstone’s beauty, value, or desirability in any way.

Tanzanite is a beloved choice for fine jewellery, particularly for pendants, earrings, and cocktail rings where it can be truly showcased. With a Mohs hardness of 6.5 to 7, it is slightly softer than sapphire or ruby, and benefits from a protective setting — such as a bezel or halo — when used in rings intended for everyday wear. With thoughtful care and the right mounting, a Tanzanite jewel becomes a lasting statement piece of exceptional beauty.

To preserve the brilliance and lustre of your Tanzanite, we recommend cleaning it gently with warm water, a mild soap, and a soft brush — then patting it dry with a lint-free cloth. Avoid ultrasonic cleaners, steam cleaning, and prolonged exposure to harsh chemicals or extreme temperature changes, as these can stress the stone. When not worn, store your Tanzanite separately from harder gemstones to prevent surface scratching, ideally wrapped in a soft pouch or placed in a lined jewellery box.