|
A female employee of Bonham's Auctioneers in central London studies a rare deep-blue Diamond weighing 5.30 carats, on April 3, 2013. A rare deep-blue diamond ring worth more than £1 million could make history when it goes on sale this month. The �fancy� diamond weighs 5.30 carats and was set in a Trombino ring made by renowned Italian jeweller Bulgari, who is favoured by Hollywood film stars. The term fancy is used to describe a diamond of intense colour and the colour fancy deep-blue is one of the rarest in the world. Blue diamonds are structurally very pure and account for less than 1% of all diamonds mined.The ring is thought to have been made in 1965 and is estimated to fetch up to £1.5 million at Bonhams Fine Jewellery sale on April 24. (Photo by John Stillwell/PA Wire)
|
