The Golden Eye Diamond ~ As far as we know, this beauty is the world’s largest flawless Canary Yellow diamond. For quite a few years it remained in its original uncut 124.5-carat state. This particular type of diamond–a fancy intense yellow – accounts for less than 0.1 percent of all natural diamonds, so you can imagine how rare one this one is. The gem was cut to a still-huge 43.51 carats and somehow became entangled in a drug dealing and money laundering ring in Ohio, which was busted in 2006.