The 36-year-old daughter of Sir Paul McCartney reportedly created the £300 silver pendant in an apparent dig at her father's estranged wife, who had her left leg amputated below the knee after being hit by a motorbike in 1993.
A source told Britain's Daily Mirror newspaper: "She unveiled it to fashion industry insiders in Paris last month. A lot of people thought it was really edgy while others secretly thought it was out of order.
"It's such an obvious dig at Heather. It will cause a stir when it goes on sale."
Heather branded Stella "evil" during an outburst on live TV..