1. DiamondsGet out those record books. A 101.73 ct. pear-shape D-flawless will be hitting the block at Christie’s Geneva on May 15, and while its official estimate is $20 million to $30 million, many think it could go even higher—into auction history. (The gem already has set one record, being the largest D-flawless ever to be sold at auction.) But unlike past headline-making auction stones, this one doesn’t have a storied past: It was cut from a 236 ct. rough found quite recently at De Beers’ Jwaneng mine in Botswana. There is, however, one upside to bagging a big stone that’s fresh out of the ground: You not only get to own it, but you get to name it as well.2. RecordsThe 637 ct., 18k rose gold Mouawad necklaceThe Mouawad family has a new world record to add to their collection. (They previously had three, including one for an $11 million bra.) In March, Guinness World Record