Marc Jacobs has reportedly split from Lorenzo Martone.

The designer married the Brazilian PR executive on New Year's Eve (31.12.09) on the island of St. Barts in the West Indies but the couple have decided to separated less than four months later.

One friend told the New York Post newspaper: "They've both been telling people that they broke up."

Although Lorenzo has denied claims he has moved out of the Manhattan apartment they share, he didn't accompany his beau to the wedding of Marc's business partner Robert Duffy last week.

A spokesperson for Marc said: "We don't comment on Marc's personal life."

Although the couple wed in St Barts, they had yet to sign any official wedding documents, meaning the marriage wasn't legal.

Lorenzo said: "In the end, we just had an intimate ceremony at a friend's house with people who were already on the island.

"Although the official wedding papers won't be signed till later this year, so legally we're not married yet."

Representatives for Marc and Lorenzo had previously denied the couple married, even though there was a wedding cake at their New Year 'party'.

In January a representative said: "Someone had a party for them, but there was no wedding. They are still engaged."