John Mayer is reportedly all set to propose her long time girl friend Jennifer Aniston for marriage. British newspaper the Daily Mirror is reporting that the musician has been shopping for rings at top jeweller's Lorraine Schwartz, the design house which also provided wedding bands for Jennifer Lopez and Beyonce Knowles.

A source tells the publication, "Money is no object for John. He is creating a vintage-style classic ring for Jen. He's looking at an 18-carat flawless diamond. When he does get down on one knee, he wants to be completely sure he gets the right answer.

"He knows a ring like that would be difficult to refuse. He's just waiting for the most romantic setting to put the ring on her finger - busy schedules permitting." - Sampurn Media