The showstopper in question: a Pomellato necklace featuring a 55.96 carat tanzanite stone, set in a bespoke bezel at the base of 78 gold-plated modules, each pavé-set with white diamonds.

The pear-shaped, faceted tanzanite stones on the studs and the pendant are surrounded by small white diamonds – a similar setting to her instantly recognisable Garrard engagement ring. The Duke of ...

Dec. 14 -- The blue precious gem tanzanite is a hot item in shopping malls across America this holiday season, and if federal investigators are right, Osama bin Laden couldn't be happier. "It's ...

A Tanzanian small-scale miner, who became an overnight millionaire in June for selling two rough Tanzanite stones valued at $3.4m (£2.6m), has sold another gem for $2m. The third discovery by ...