DIAMONDS, A GIRL'S BEST FRIEND: Explain to the people Deepak's allegations if untrue - PKR tells Rosmah

Rosmah Mansor, the controversial wife of embattled Prime Minister Najib Razak, must come clean on a string of damning allegations made against her by businessman Deepak Jaikishan, a former close friend and part of her inner circle.

"It is very simple. Deepak has made these accusations against Rosmah and he has shown docuemnts he bought these diamonds for her. It is now for her to deny if it is not true. These are very serious allegations that touches on the office of the Prime Minister," Rafizi told a press conference.

"But as we have seen in the past, there has always been deafening silence whenever there are documents that show corruption. This is also not the first time time Rosmah has been involved in a cincin (ring) incident. In the end, the Customs documents did show that there was such a diamond ring worth US$ 24 million."

Rafizi was referring to a previous scrape Rosmah and Najib were embroiled in where she was accused to buying a diamond ring from a New York jeweller worth US$24 million.