The supermodel and rocker, who tied the knot in 2011, have reportedly called time on their marriage and haven’t been seen out in public as a couple since March.
Stunning Kate and the guitarist were all smiles on the red carpet at at the Alexander McQueen: Savage Beauty Fashion Gala at the V&A Museum in London.
The glamorous event, presented by American Express and Kering, took place on March 12 and Kate, 41, looked stunning in a see-through black lace patterned dress and black heels.
Jamie, 46, rocked up in a smart suit and wide tie and kept his wife close and they were seen holding hands a number of times during the evening.
But they seemed to spend more time apart after the event and it has been claimed one of the reasons behind their alleged split is Kate’s jealousy over Jamie’s friendships with other women.
A source told The Sun newspaper: “They are properly over as a married couple. It’s gone past the point of no return.
“Jamie’s just waiting for Kate to move forward with divorce proceedings.”
According to reports, Kate flew into a rage at Jamie’s birthday two years ago and pushed his friend Lady Mary Charteris into a pool after she spotted the two in conversation.