Leibish & Co., unveiled its World of Colors guide for identifying fancy colored diamonds in New York Thursday (January 19). A day earlier, I spoke privately with Leibish Polnauer, the president and ...

Next time you buy a glittering fancy coloured diamond weighing one carat and above do not forget to verify its colour as natural. As you may land up buying a high pressure/high treatment (HPHT) colour ...

When shopping for a diamond, whether for an engagement ring or a piece of fine jewelry, you’ll quickly encounter the term Four Cs—Cut, Color, Clarity, and Carat Weight. These four characteristics ...

When it comes to diamonds, colour is one of the key elements and one of the four Cs – that is, carat, cut, colour and clarity – that determines their grade and how precious they are. If engagement is ...

From rare purple diamond discoveries to record-breaking sales, Paris Couture Week kicks off with a bang as new first-of-its-kind report presents the world's most coveted and rarest fancy colour ...

Mineral curator Mike Rumsey discusses the science behind the Aurora Pyramid of Hope, an unrivalled collection of 296 coloured diamonds. On display in a lofty Museum gallery is a small, glittering ...

A 28.86-carat D-color diamond sold for $2.1 million, setting a record for a jewel sold at an online-only auction. The VVS1 clarity gem was the top lot at Christie’s Jewels Online sale, held June 16 – ...

The rock now gracing Taylor Swift’s finger, along with US president Donald Trump’s doubling of tariffs on goods from India, has given a welcome boost to the diamond industry. Swift’s engagement lifted ...