Ronson buys Lohan £11,000 Cartier ring

Samantha Ronson has bought Lindsay Lohan a £11,000 Cartier ring to celebrate their relationship.

Lohan wore the jewellery, which was reportedly a 22nd birthday present, while they shopped in LA earlier this week.

A source told The Mirror: "Sam took Lindsay shopping to celebrate her 22nd birthday. Although Lindsay is the major breadwinner, Sam has her own money and is very proud.

"It's not an engagement ring - simply a token of her commitment. Lindsay is thrilled and she and Sam are very content."