Jacques addresses the significance of the astounding Lucara Diamond recently discovered, and GIA's work helping dealers, ...

Amethyst is a violet variety of quartz that has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz ...

The country icon talks her limited-edition 10-piece collection, the entrepreneurial spirit she shares with Scott, and singing ...

Looking for new jewellery during Black Friday? Shop the best jewellery sales, deals and discounts on rings, necklaces, ...

Sources: FactSet, Tullett Prebon Commodities & Futures: Futures prices are delayed at least 10 minutes as per exchange requirements. Change value during the period between open outcry settle and ...