The Ultimo boss had owned the coveted gong for just five days when she left it in the back of a black cab during a business trip to London on Monday.
The Scottish businesswoman made a desperate internet appeal to try to retrieve the insignia - which was in a case, along with clothes, jewellery and a secret design for a new product.
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Hide AdYesterday, all her belongings were returned to her after the taxi driver handed them in to a police station.
Writing on Twitter yesterday, Ms Mone said: "OMG just heard case has been handed in.
"Thankyou all sooooo much!! I'm on top of the World."