Record-breaking diamonds | The Jewellery Editor

As autumn auction season approaches, we hunt out the most expensive ring on the planet and other worthy contenders.

Today Graff unveiled the record-breaking Venus, the largest flawless heart-shape diamond ever certified by the GIA.

You won’t believe your eyes when you read our round-up of the most expensive sales of jewelry in auction history.

The 24.18 carat Cullinan Dream is the largest and most expensive Fancy Intense blue diamond to ever go under the hammer.

This 14.62ct Vivid Blue diamond has become one of the most expensive diamonds ever sold at auction.

A 15.38ct pink diamond ring led the way to a record-breaking total at Sotheby’s Magnificent Jewels and Noble Jewels spring sale.

The lead lot at Sotheby’s New York auction on 19 April will be the legendary star’s beloved blue diamond ring.

The De Beers Millennium Jewel 4, the largest oval Fancy Vivid blue diamond, will go under the hammer at Sotheby's Hong Kong in April.

History was rewritten when Wallace Chan unveiled a $200m masterpiece blowing all previous records out of the water.

Fetching sky-high prices at auction this year proves that diamonds are still the most coveted gems in the world.

Two huge rough diamonds - the 187.7ct Diavik Foxfire and the recently unearthed 1,111ct Karowe AK6 diamond - are grabbing headlines.