The RapNet Diamond Index (RAPI™) for 1-carat diamonds — reflecting round, D to H, IF to VS2 diamonds — fell 1.5% in October. The index dropped 0.6% for 0.30-carat stones, 2% for 0.50 carats ...

The RapNet Diamond Index (RAPI™) for 1-carat diamonds — reflecting round, D to H, IF to VS2 diamonds — fell 1.5% in October. The index dropped 0.6% for 0.30-carat stones, 2% for 0.50 carats, and 0.5% ...

And the most effective result was a bit surprising: diamonds. Well, diamond dust, specifically. The team ran the compounds through a climate simulation and monitored their atmospheric effects for ...

The rarity of precious gemstones comes down to the geologic process of their formation. Sparkling diamonds and verdant emeralds are some of the most coveted and priciest gemstones. But which ...

Created in collaboration with Jason of Beverly Hills, the Celtics' 2024 NBA Championship rings have a lot of special features and a lot of diamonds. A LOT of diamonds. WBZ-TV's Dan Roche caught up ...

It’s been 15 years since the global effort to ban conflict diamonds began. But the industry is still tainted by conflict and misery Story by Aryn Baker/Tshikapa Photographs by Lynsey Addario for ...

The ring features a total of 15 carats of white diamonds representing the 15 Eastern Conference teams. Here's a look at the bling -- the finer details of which will be listed below. Tap in on ...

The man-made diamond boom is over, and prices for ultra-trendy lab-grown diamonds are set to tumble this year, industry veterans say. Paul Zimnisky, a leading diamond analyst, foresees jewelers ...