Blinging their best game

BLING IT ON: Maria Sharapova models the Tiffany Paloma Picasso earrings that she will wear at the Australian Open.

BLING IT ON: Maria Sharapova models the Tiffany Paloma Picasso earrings that she will wear at the Australian Open.

BLING IT ON: Maria Sharapova models the Tiffany Paloma Picasso earrings that she will wear at the Australian Open.

BLING IT ON: Maria Sharapova models the Tiffany Paloma Picasso earrings that she will wear at the Australian Open.

BRING IT ON: Maria Sharapova practices for the Australian Open hours before she was modelling the Tiffany Paloma Picasso earrings that she will wear at the tournament.

BLING IT ON: Venus (left) and Serena Williams arrive at the Marc Jacobs show during Fashion Week in New York, 2005.

BLING IT ON: Serena Williams speaks during a news conference in New Delhi in 2008.

BLING IT ON: Serena Williams walks on the court during her match against China's Yuan Meng at the Australian Open tennis tournament in Melbourne in 2008.