Armani's Proletarian Chic

Above is the dress my son bought for his girlfriend for her birthday. She looks wonderful in it. It got me wondering what sorts of rings were being sold to accompany this look of "proletarian chic." I think the ring at the top with the screw heads is the most appropraitely "proletarian." My favorites though are the one with the "diamonds" and the simple signet ring. Maybe one of these would make a good Christmas present?