London: Ashley Cole is leaving no stone unturned in trying to woo back ex-wife Cheryl and is reportedly looking for the “biggest diamond he can get” to propose to her for a second time. The soccer ace, who separated from the 28-year-old singer in 2010 amid claims that he had cheated on her with five women, wants to re-marry her and is now hunting for the ring to get down on one knee, so the pair can start a family. “He is convinced Cheryl will agree to marry him and wants the biggest diamond he can get. She’s desperate to start a family but he knows she’ll want to do it as a married woman,” a source said. Cheryl who has had a makeover with newly blonde hair following her sacking from the US version of X Factor, is also spending time with Ashley’s mother Sue at her home. “Sue is incredibly fond of Cheryl and is forever singing her praises. She says she is so glad to have her daughter-in-law back,” a source said. (IANS)