Blue is beautiful when it comes to diamonds. Two of the top three to have fetched the highest prices for coloured diamonds at auction are “fancy vivid” examples – the top spot still belongs ...

PEAR The pear-shaped diamond, often called the teardrop due to its elegant silhouette, has origins in the 15th century. Initially known as the pendeloque, this unique cut blends the round ...

Graphite's microscopic flat sheets of carbon are an ideal starter material for synthesizing diamonds. The cell also contains a tiny diamond to help the carbon crystallize into a rough shape ...