Copper price set for worst week since 2022 as China Plenum disappoints
Copper prices have retreated from a record hit in May on concerns about the strength of demand in China.
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.)
