Blue diamond is considered as the most expensive gemstone in the world. Priced at $3.9 million or P225 million per carat, it is a very pricey gemstone. While blue is one of the rarest diamond ...

A rare Russian pink diamond called the ‘ Spirit of the Rose ’ has set the new world record for the most expensive purple-pink diamond ever sold. The 14.83 carat diamond was auctioned for a ...

Some Lehigh Valley residents recently got to see the rare weather phenomenon known as “diamond dust”, according to forecasters. Ray Martin, a meteorologist for the National Weather Service in ...

A rare pink diamond has sold for HK$453.2 million (US$57.7 million) in Hong Kong, setting a record for price per carat paid at auction for any diamond or gemstone, according to Sotheby’s auction ...