Evgeny Lebedev (L) and Karina Smirnoff attend the launch party for 'Promise', a new capsule ring collection created by Cheryl Cole and de Grisogono,

Evgeny Lebedev (L) and Karina Smirnoff attend the launch party for 'Promise', a new capsule ring collection created by Cheryl Cole and de Grisogono,