Rihanna shows off her VERY ample assets in skin-tight leather mini dress and matching coat for Jay-Z gig in Los Angeles (Details, pics)

She sparked engagement rumours earlier this month after being spotted with an eye-catching diamond on her wedding finger.

But Rihanna did her utmost to draw attention away from any wedding plans with her outfit choice as she arrived at The Forum on Thursday night for Jay-Z's anticipated Los Angeles concert.

Rihanna, 29, dressed to impress in her black leather mini, with the halter-neck design highlighting her ample assets which threatened to spill out of the low-cut dress.

The superstar looked sensational in a tiny and tight leather mini dress, showing off her bombshell curves.

The singer matched her sizzling dress with a long leather coat draped around her shoulders and strappy heels.

A thigh-skimming hemline also displayed the Diamonds singer's legs as she made her way to the gig. While her neon bright nails drew attention, the savvy star managed to conceal her left hand under the cuff of her coat after previously displaying a stunning diamond on her ring finger earlier this month in New York.

She completed her ensemble with a slicked-back ponytail, and added pops of colour with a bright green manicure and glam red lippie.

Rihanna - who has been dating billionaire Hassan Jameel for about a year - was sporting the large rock as she left Madison Square Garden where she took in Chris Rock's stand-up comedy performance..

The ring - which had not been seen before - appeared to have a large center stone that could have been a champagne diamond which was surrounded by several large white diamonds that created what looked to be a daisy pattern.

Hassan is the deputy president and vice chairman of family business Abdul Latif Jameel – one of the biggest companies in the world. And Rihanna is not the first of his famed romances as he was previously linked to Naomi Campbell.

Hassan was previously married to art expert Lina Lazaar after the pair wed at Paris' Opera House in 2012.