Halle Berry has sparked rumours that she's all set to marry Olivier Martinez, after she was spotted wearing an emerald ring on her wedding finger.

The Oscar winner has been dating the French hunk after meeting him on the set of her upcoming film 'Dark Tide' last year and now the pair has prompted speculation of their marriage.

The 45-year-old was seen enjoying a drink in Malibu, California on New Year's Day while wearing a huge emerald and gold ring on her engagement finger, the Daily Express reported.

Berry has been married twice before - she was wed to baseball player David Justice for three years until they split in 1996, and then to Eric Benet from 2001 to 2003.

The star has one daughter, Nahla, with ex-boyfriend Gabriel Aubry.