R&B stars Rihanna and Chris Brown have celebrated their love by treating one another to $200,000 diamond necklaces.

The couple - who is still refusing to confirm their romance, despite having been photographed kissing on numerous occasions together - bought the expensive gifts from jeweler Jason Arasheben's exclusive Beverly Hills store.

Arasheben tells Britain's News of the World tabloid, "Chris went for the heart theme while Rihanna chose a diamond-encrusted cross to give to him."

- Chris Brown pics
- Rihanna pics

(This news article provided by World Entertainment News Network)