It is thought that some of the diamonds may have come from the necklace linked to a scandal that contributed Marie-Antoinette ...

An 18th-century diamond necklace, potentially linked to Marie Antoinette, will be auctioned in November. Estimated at $2.8 million, the 300-carat jewel was publicly displayed for the first time in 50 ...

Now, De Beers is aggressively cutting prices to bring sales up, and you can buy a diamond-making device for $200,000 on ...

Gemstone sales account for a quarter of the country's GDP, but falling global prices are forcing it to diversify its economy.

Burmese rubies, Colombian emeralds and collectable vintage jewels headline the annual Phillips Hong Kong Jewels Auction this ...

If you need to sell jewelry, there are a lot of different places to consider. We look at the best places online and locally to get the most money you possibly can for your pieces. The post Where to ...

In a bad week for organised crime, Paul Reynolds tells the story of 'Ghost' devices, the Kinahans and the gangs that replaced ...

All polished diamonds are valuable. That value is based on a combination of factors. Rarity is one of those factors. Diamonds with certain qualities are more rare—and more valuable—than diamonds that ...

Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip ... The majority of diamonds used in fine jewelry weigh one carat or ...

Some of the diamonds from the necklace may have come from the piece at the heart of the "Affair of the Diamond Necklace" ...

A diamond necklace that has been worn at two British coronations, and is thought to have stones from the infamous necklace at ...