Diamonds

A diamond as big as The Ritz: Laurence Graff acquires the Lesedi La Rona

Ultra-rare gem sets a new high of £2m per carat

From smash-and-grabs to underground tunnelling and cryptocurrency hacks, this century has seen it all

Hugh 910-carat gemstone found in Lesotho mine could sell for £30m or more

The haute joaillerie crystal specialist celebrates its birthday with a collection using truly sustainable emeralds and crystals

When you're looking for a new stone, you need to know the "four Cs". Lilian Lousky and Salim Hasbani tell us what they are

No outfit is complete without a touch of sparkle so dazzle this Christmas with some of the year's finest bejewelled timepieces

At 118.78 carats, the heart-shaped jewel is the largest of its kind in the world – and its transformation was months in the making

Stunning bespoke hypercar to go on show at the Salon Prive concours show at Blenheim Palace

Hong Kong businessman bought the blue diamond for £32m, renaming it 'The Blue Moon of Josephine'