The romantic secrets behind the world's most talked about rings

GALLERIES

The romantic secrets behind the world's most talked about rings

Keira Knightley's rock star fiancé James Righton chose a simple and elegant ring for the actress when they got engaged in May 2012 after 15 months together. 

The band, a single circular diamond set into a thin gold band, was seen for the first time during a romantic night out in London for the pair.

The low-key couple were married on 4 May, 2013 in the south of France.