
The Black Prince's Ruby
Mounted at the very front of the British Imperial State Crown, the 170-carat 'Black Prince's Ruby' was paraded for almost six centuries as the most famous ruby in Europe. Edward, the Black Prince, received it in 1367 from Pedro of Castile. Henry V wore it into the Battle of Agincourt in 1415, where it reportedly saved his life when a French battle-axe struck the gem set into his helmet. It was only with the rise of modern gemology in the 19th century that the truth emerged: it is not a ruby at all. It is a magnificent red spinel — almost certainly mined in the Badakhshan region but with kin-stones flowing from Ceylon for two thousand years. No British monarch had ever known the difference.
For five centuries, the most-watched 'ruby' in Europe was a spinel.




