A SELF-STYLED 'playboy' found guilty of murdering his Hampshire student girlfriend today lost his appeal against conviction.

Wealthy jeweller's son Elliot Turner, now 21, from Bournemouth, was present in the dock at the Court of Appeal in London for the ruling by the Lord Chief Justice, Lord Judge, sitting with Mr Justice Royce and Mr Justice Globe.

In May last year he was sentenced to life and ordered to serve at least 16 years before he can apply for parole after he was convicted by a jury at Winchester Crown Court of murdering 17-year-old Emily Longley.

After hearing argument on Turner's behalf and from a QC representing the prosecution, Lord Judge announced that the court had decided to reject Turner's challenge.

He said the court had reached the ''clear conclusion'' that the appeal should be dismissed.

The court also threw out Turner's bid to have his sentence reduced.

The judges will give their reasons for their decision at a date to be announced.

A large number of the victim's family were in court, including members who had travelled from their home in New Zealand.

During his trial Turner claimed that he acted in self-defence when Emily attacked him and he grabbed her by the throat for five or six seconds and then woke up to find her dead in his bed at his home.

The prosecution said Turner used a pillow to smother Emily and then strangled her after she went back to his house to talk things over following a violent argument that night.

When sentencing Turner, Mrs Justice Dobbs said he had ''bullied, harassed, threatened and assaulted'' Emily to control her as his ''trophy''' girlfriend.

Turner's QC Anthony Donne told the appeal judges earlier today: ''The appeal against conviction centres on the use by the police of a covert listening device at the appellant's family home in Bournemouth following his release on police bail after his arrest on suspicion of the murder of his girlfriend Emily Longley on the night of 6/7 May 2011.''

As well as hearing submissions on the safety of the conviction from Mr Donne, the judges also heard argument from Timothy Mousley QC, opposing the appeal on behalf of the prosecution.

Mrs Justice Dobbs described Emily as a ''lovely, kind, fun-loving girl who brought a ray of sunshine to those she touched''.

The teenager had come from New Zealand to study at Brockenhurst College just eight months before her death.

Speaking on behalf of the family, Emily's grandfather, Ron Longley, said afterwards: ''We are profoundly relieved. It's the end of a very anxious year.

''Finally we hope we can draw the line under the legal process and somehow come to terms with the situation.''