Magical Farnese blue diamond expected to fetch £5m
A spectacular blue diamond which was gifted to a Spanish queen in 1715 is to go on sale for the first time ever next month with an anticipated price tag of around £5 million. Until recently, no one knew of its existence since the 6.16 -carat 'Farnese Blue', crafted for Elisabeth Farnese, Queen of Spain (1692-1766) was seen only by close relatives though since those relatives spanned four royal families across France, Spain, Italy and Austria over a period of 300 years, it is astonishing the diamond has been kept under wraps so successfully. It was found in the Golconda