GENEVA, Switzerland (Reuters) — A famous diamond, linked to French royalty, was sold for nearly $15 million at auction in Geneva on Tuesday (November 14). “Le Grand Mazarin,” a 19 carats pink diamond, belonged to French crown for more than 200 years and was part of crown jewels. Another key sale at the auction was a 163 carat flawless D-colour emerald-cut diamond necklace, known as “Creation 1,” sold for $33,500,000. François Curiel, Christie’s’ Chairman Europe […]