Rihanna engaged to boyfriend Hassan Jameel?

New York: Singer Rihanna has sparked rumours that she is engaged to her billionaire boyfriend Hassan Jameel after she was spotted wearing a ring on her wedding finger.

The singer, 29, flashed the bling as she headed out here this week, reports thesun.co.uk.

The jewel appeared to feature a large champagne diamond surrounded by a series of smaller diamonds.

She later shared a photograph of herself with her hand raised - showing off the ring in the process.

The couple managed to keep their romance a secret for almost six months before they were snapped enjoying a kissing session in Spain during summer.

Friends of the singer believe it is the "real deal" after she spent a number of secret weekends in the UK with him this year.