IMPERIAL TOPAZ

The most sought after and valuable natural topaz, this gem’s name originated in 19th-century Russia to honour the czar, as the Ural Mountain mines were a leading source of the stone. Like the colours of the setting sun, imperial topaz is defined to include yellow, red, pink, lavender-pink or pinkorange, with the natural pink variety being very rare. While orange, pink and red topaz now come mainly from Ouro Prêto in Brazil, fine pink topaz also hails from Pakistan’s Katlang area. It has a hardness of 8 on the Mohs scale, and is also highly prized for its brilliance and glassy lustre with few inclusions. From Cartier’s High Jewellery collection Magnitude, the enthralling Mauna necklace showcases three bicoloured Brazilian imperial topazes – two octagonal and one pear-shaped with an ombré effect – weighing a total of 21.91 carats. Accompanied by diamonds, sapphires and rutilated quartz, the striking colours and design cascade like lava flowing from volcano.