Tanzanite was ushered into the limelight by Tiffany & Co. a year after it was excavated in 1967. A blue variety of the mineral Zoisite, Tanzanite’s rich blue hue became an instant sensation and was hailed as the gemstone of the 20th century.
Standard colour:
Tanzanite shows different colours when viewed in different crystal directions, gleaming with unmistakable shades of blue and violet as the orientations change. The finest tanzanite displays a rich and deep violetish-blue (similar to a sapphire) or a uniquely-recognisable violet hue. Due to its intense and saturated colour, tanzanite is often described as ‘velvety’.
For years, many jewellery companies have favoured distinctive and vivid hues. More affordable than sapphire, tanzanite is an excellent alternative to the world of blue-coloured gemstones for collectors.
Mohs hardness: 6 - 7