Armenian Catholicos Aram I of Cilicia has offered to mediate between the Armenian Church and the government in their ongoing conflict.
This allows the Prosecutor General to press charges against all three MPs.
The raid came days after parliament passed a bill allowing it to nationalise the company.
Activist Vahagn Chakhalyan has been arrested, while the authorities seek to waive the immunity of MP Artur Sargsyan.
The detained tycoon has demanded that two MPs pay him $24,000 each and publicly apologise.
The company is owned by Samvel Karapetyan, who was detained for making calls to overthrow the state.
Russia’s FSB accused Khachatur Sukiasyan of being involved in a scheme to steal Russian diamonds and smuggle them to Armenia.
