Message us 

You may also call us at 973.912.9640 

TUE-THU 10-5:30 and FRI-SAT 10-5

973 912 9640

The wife and husband team of Nancy and David Stone have long been recognized as pioneers of modern jewelry design since launching Nancy and David in 1980.

Some thoughts...

New record for 5.3ct blue diamond at $9.6 million

Nancy and David

April 24th, 2013: ​ A magnificent blue diamond broke a world record, pulling $9.6 million, or about $1.8 million per carat, according to Bonhams Auctioneers.

Screen shot 2013-04-26 at 8.35.55 PM.png

The diamond is a brilliant blue and is set in a ring made by Italian jeweler Bulgari around 1965. Less than 1% of all diamonds mined are blue diamonds.

"Blue diamonds, especially those over 5.00 carats, are extremely rare to see on the market and continue to be highly sought-after," Jean Ghika, the director of Bonhams' European jewelry department, said in a statement. According to Bonhams, the previous record for the price of a diamond per carat was $1.68 million.