By Kathleen Beckett Pity the poor spinel. The gemstone that many people have never heard of has been saddled for centuries with the name “the great impostor,” Alessandro Borruso said as he ...

The Hope Spinel will be among the top lots of Bonhams London Fine Jewellery Sale on September 24. The 50.13-carat octagonal step-cut spinel is expected to fetch $240,000 - $310,000. However ...

The 50.13-carat Hope Spinel fetched $1.47 million at the auction, easily shattering its high estimate of $310,000. The gem set a world record for achieving a price of $30,000 per carat ...

The gemstone spinel, known for its vibrant colors resembling gems like rubies and sapphires, has now been shown to be capable of storing quantum information, making it a viable material in the field ...