UK to sign critical minerals partnership with Saudi Arabia
Britain needs a secure, long-term supply of critical minerals, such as copper, lithium and nickel.
The market for coloured gemstones is on fire, with pink diamonds, rubies and sapphires achieving record prices and experts predicting a sharp increase on demand next year to last a decade.
Only last month, Sotheby’s set a new world record for a ruby when it sold an 8.62-carat Burmese stone for US$8.4 million (8.2m Swiss francs). The auction house also set a new world record for sapphires at a recent auction in Hong Kong.
But what makes diamonds have a colour? Canadian diamond retailer Excalibur Royale created the following infographic explaining this, and more.
(Cover image from Argyle Pink Diamonds.)
