The Kuala Lumpur High Court has dismissed Citizen Declaration's coordinator Khairuddin Abu Hassan's application to cross-examine businessperson Jho Low.

This in relation to an affidavit Jho Low had filed to strike out a suit brought by the former Umno man over a pink diamond and accompanying necklace allegedly bought by Low using 1MDB funds for former prime minister Najib Abdul Razak's wife, Rosmah Mansor.

Justice Ahmad Zaidi Ibrahim said there is no merit in the application to cross-examine Jho Low as the court feels there is no need to do so.

"The court agrees with Jho Low's counsel (Rishwant Singh). The application has no merit," he said, adding that there is no order made as to costs.

The court has fixed tomorrow for the hearing of Jho Low, along with Rosmah and 1MDB's application to strike out the suit.

Khairuddin named Rosmah, Low and 1MDB as defendants in the suit filed over the 22-carat pink diamond, said to be worth US$23.7 million, and the necklace, which is estimated to be worth US$4.3 million.

This was related by lawyer Damien Chan who appeared for Khairuddin. Chan together with Rishwant had met Justice Ahmad Zaidi in chambers.

It was previously reported that Justice Ahmad Zaidi had also dismissed Khairuddin's application to cross-examine Jho Low over his affidavit in support to appoint the firm of Messrs Ng Aik Guan to appear for him.

In his suit, Khairuddin wanted Rosmah to return the alleged 22-carat pink diamond necklace set to 1MDB.

Khairuddin alleged that between June 2013 and March 2014, Low acted through his agent, Eric Tan, to purchase jewellery from Lorraine Schwartz in New York for the sum of US$27.3 million, which Khairuddin alleged came from misappropriated 1MDB funds.

He claimed that the necklace was given to Rosmah sometime in March 2014 and that it should be returned to 1MDB, along with the money Low allegedly misappropriated from the firm.

He added that since Rosmah gave no consideration to the said necklace, she has no title in law or equity to it, meaning that 1MDB was entitled to have it back.