From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that redefines luxury.

In 2015, Hong Kong billionaire Joseph Lau spent a record USD 48.4 million on a 12.03-carat cushion cut diamond dubbed “Blue Moon” for his seven-year-old daughter at a Sotheby’s auction in Geneva.

A rare 10-carat blue diamond from South Africa drew global attention at Sotheby's $100 million diamond exhibition in Abu Dhabi. The gem could fetch $20 million at auction in May. Listen to Story Rare ...

The next time, in 2022, it was with an 8.5-carat cushion-cut green diamond surrounded by two ... Reportedly a cool $2 million. Williams’ ring from Reddit co-founder Alexis Ohanian is estimated to be ...

ABU DHABI, United Arab Emirates (AP) — A rare blue diamond was displayed Tuesday at an exhibition of $100 million worth of the world's rarest diamonds in the United Arab Emirates’ capital ...

Sotheby's Deputy Chairman, Middle East & Head of Sotheby's UAE, Katia Noun Boueiz wears the Mediterranean Blue diamond during its worldwide debut in Abu Dhabi, United Arab Emirates, Tuesday ...

(AP Photo/Altaf Qadri) The 5.05-carat square emarald-cut Fancy Brown-Red diamond is on display during an exhibition in Abu Dhabi, United Arab Emirates, Tuesday, April 8, 2025. (AP Photo/Altaf ...