and platinum bullion), gems, stamps, and coins. Your profit or loss is the difference between the basis, usually your purchase price, and the sale price. If you end up selling your goods at a yard ...

For instance, a 1,109-carat diamond from the same mine fetched $63 million in 2016, setting a record for rough gems. Given large inflation since this sale, it is reasonable to assume this massive ...

Appraisers typically use characteristics developed by the GIA to determine the value of gems and assess the metals ... point you to the best market for sale, whether it’s a gallery, an auction ...

Today marks the third day of the event, giving our editors plenty of time to find the diamonds in the rough and share them with you. Here are our favorite hidden gems from the Amazon Big Spring Sale ...

Lower-quality stones saw a gentler decline, with prices of round, 1-carat, D to H, SI diamonds slipping 3.5% in September.

The gemstone is known for its "play-of-color," or ability to shift hues. Rough opals appear white, but once polished, their surface shines a rainbow kaleidoscope. Opals can be found across the ...

The Paris expansion is one of several major real estate shifts Sotheby’s has made over the last year to increase luxury ...

The former president's new timepieces are the laughingstock of watch aficionados, who cast doubt on their true origins — "as ...

The last few years have been tough for India’s recession-hit diamond industry. Surat, in Gujarat state, processes 90% of the ...

Though the collection is not for sale, Segera does sponsor an artist ... and the art of transforming gems in the rough into faceted jewels.

Amazon’s Prime Big Deal Days sale event has started, and we’ve found the 42 best toy deals early holiday shoppers can score ...