Nathan Greenwald is a former portfolio manager, analyst and trader. He has worked in the asset management industry for 12 years at several prominent New York based hedge funds, where he did everything from building multi factor equity selection models, to researching and shorting overvalued stocks, as well as covering and analyzing technology, financial services and consumer companies. Nathane began his career as a financial journalist at “Individual Investor” magazine, before attending business school and entering the finance industry. He currently works as a consultant to several hedge funds and asset management firms, and writes freelance articles on the capital markets, mutual funds, and other investment vehicles as well.
This flawless, 101.7-carat, pear-shaped diamond—one of the world’s largest —will go up for auction at Christie’s “Magnificent Jewels” sale in Geneva on May 15, 2013. How much will it sell for? Choose the correct answer and registered site users will be eligible to win a one-year subscription to Christie's Geneva Jewelry sales catalogue, courtesy of Christie's. 
