In recent years, the name Mischa Barton has sparked much controversy as the former The OC star waved between stunning beauty and weight gain that caused her to be unrecognisable.

However, this festive period it seems the 25-year-old has cleaned up her appearance as she was spotted sunbathing on an Australian beach while wearing a dangling silver necklace.

Women in search of online jewellery may follow the actress’s lead as she paired the silver necklace with an understated black bikini, cat eye sunglasses and bright red lipstick.

Ditching criticism of her fluctuating weight, the star proved she was back to her Marissa Cooper form as she flaunted her trim figure, stifling accusations of being either overweight or underweight.

It has been a rocky road for Barton since 2006, when she departed the popular teen drama, as alleged drug and alcohol addictions seemed to cause her physique to move from one extreme to the other.

She has a number of upcoming productions including Ben Banks and The Sibling, both due out next year.

28-12-11 Barton glows in beach bikini and silver necklace