
A vivid blue diamond ring weighing 7.03 carats was sold for a record $9.49 million, the highest price paid per carat for any gemstone at auction. The rectangular-shaped blue stone, the rarest to enter the international market this year, went to an anonymous buyer bidding by telephone after hectic bidding see-sawed between two callers for 15 minutes.

As the new owner of the ring he/she have the right to name the vivid blue diamond ring, which is mounted in a platinum ring.