Most natural and synthetic diamonds feature a cubic lattice structure but there are rare exceptions. Lonsdaleite, for example, is a type of diamond that was first discovered in 1967 in the Canyon ...

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 ...

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 ...