Allison Williams wears a black diamond encrusted strapless column dress at the 2013 Grammy Awards in LA

'Girls' actress Allison Williams made an appearance at the 2013 Grammy Awards in LA, as Katy Perry's date, and opted for a strapless column dress by Kaufmanfranco. The dress appears beaded, but it actually was encrusted with black diamonds. Being laden with jewels already, Alison kept accessorising minimal with Stephen Webster drop earrings and a cocktail earrings. Soft wavy hair and smoky eyes were the HBO's star choice of makeup with the bling look.