London (ANI): Supermodel Naomi Campbell has raised eyebrows after being spotted with a huge diamond rock on her finger, according to reports. The glamour model, who has been dating Russian billionaire Vladimir Doronin, was seen flashing the emerald and diamond sparkler while stepping out with her beau.

"She was very pointedly looking at her ring and admiring it," the Sun quoted an onlooker as saying.

The catwalk queen, who met the property dealer in May, was said to have bought a wedding gown, reports the Sun. Meanwhile, Doronin was also seen to be "showing her off" to his buddies.