Shekel's rise against dollar: a blow to diamond industry.

Which currency has strengthened against the U.S. dollar the most this year? If your answer was one of the heavyweights, such as the euro, yen, British pound or Swiss franc that would be understandable, although wrong. It will probably come as a surprise to many to discover that the best-performing currency is the Israeli shekel which in the fall rose to its strongest rate for five years and remained there through October. Indeed, no less an organization than international investment bank Morgan Stanley forecast that the shekel, at 4.25 to the dollar, could even strengthen to 3.90