Brand creates diamond setting for 128.54ct yellow cushion diamond.

Tiffany & Co. has unveiled a new platinum and diamond setting for its iconic yellow diamond, the Tiffany Diamond, to mark its 175th anniversary.

The newly-set stone will now tour as part of a string of anniversary events in cities including Tokyo, Beijing and Dubai before “returning home to Tiffany” in New York.


The Tiffany Diamond is one of the world’s largest and finest fancy yellow diamonds. It was discovered in the Kimberley diamond mines in South Africa in 1877, as a 287.42-carat rough stone.

It was acquired the following year by the brand’s founder Charles Lewis Tiffany before arriving in Paris, where Tiffany’s chief gemmologist, Dr. George Frederick Kunz, oversaw the cutting of the diamond into a cushion-shape brilliant weighing 128.54 carats with an unprecedented 82 facets—24 more facets than the traditional 58-facet brilliant cut. The stone is just over an inch wide.

Jon King, executive vice president of Tiffany & Co. said: “Resetting the Tiffany Diamond represents a commitment to the future and design innovation.

“The diamond is the most important gemstone in the world and honours the vision of our founder, whose acquisition of the stone established Tiffany’s diamond heritage.”

The new necklace took more than a year to make, and feature white diamonds totalling more than 120cts, including 20 of the brand’s Lucida diamonds and 58 brilliant-cut diamonds.

The diamond has been previously showcased in London, appearing in the 2006 Bejewelled by Tiffany exhibition at Somerset House.
The Diamond has been set on four previous occasions, two of which involve original designs by Jean Schlumberger, Tiffany’s renowned jewellery designer.