gemstone

Underpinning this transformation has been Botswana’s huge diamond reserves - measured by their value, the country is the world’s largest producer of the gemstone.

Shaped and coloured like the country’s rare gemstone, tanzanite, the sparkling new railway terminal in Dar es Salaam is a symbol of Tanzania’s transport ambitions.

The method challenges the notion of man-made gemstones being synthetic, she added.

I place pink gemstones on my heart chakra as I sleep.

He says we will see brightly coloured gemstones like rubies, emeralds, and sapphires take the spotlight and "a lot of asymmetrical designs and chunky, unconventional shapes".