Sam Kean

The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality.

Even fictional characters sometimes receive unwarranted medical opinions. Doctors have diagnosed Ebenezer Scrooge with OCD, Sherlock Holmes with autism, and Darth Vader with borderline personality disorder.

I receive huge support from Irish and British sports fans alike and it is greatly appreciated. Likewise I feel I have a great affinity with the American sports fans. I play most of my golf in the U.S. nowadays and I am incredibly proud to have won the U.S. Open and U.S. PGA Championship in the last two years.