British Royal engagement ring with Sri Lankan gem

The most talked about ring in the world today is the one that Prince William gave Kate Middleton on their engagement. That 12-carat oval blue sapphire on the ring, which raised speculation as to its origin, was Sri Lanka’s contribution to the grandeur of Britain’s Royal Heirloom.
The ring was the same one that William’s father, Prince Charles, gave Lady Diana Spencer on their engagement in 1981.

The UK Daily Mail of Nov 17, reported that the gem on Princess Diana’s ring was a ‘Ceylon sapphire’. Other sources including National Geographic, have reported that this gem is from Sri Lanka.
The blue sapphire is surrounded by a cluster of 14 solitaire diamonds set on 18-carat white gold. It had been valued at 250,000 pounds sterling prior to the death of Diana, the Princess of Wales in 1997. (Island)