Michelle Obama, Samantha Cameron Alex Wong/Pool/Sipa 1 of 3
State Dinner  Samantha Cameron opted for a three-quarter sleeve
lace dress by London-based designer Alessandra Rich for the
White House State Dinner, while Michelle Obama chose a teal,
off-the-shoulder Marchesa gown and layered Tom Binns necklaces.
Marchesa designers Georgina Chapman and Keren Craig are both
British, while the label is run out of New York. Now that's
diplomatic!  1 of 3