Scarlett Johansson attended the Costume Institute Gala last night at the MET. Although her fiance, Ryan Reynolds , did not attend, Scarlett took the opportunity to show off the her engagement ring with a giant rock. Alanis Morissette received from Ryan, for their engagement, a 3.75-carat emerald-cut diamond ring with pink and white pave diamonds. I wonder if Scarlett’s ring is more ...