"Positions, considerations and approaches have been exchanged in depth and at a good professional level, which is encouraging," Lukashevich said at a news conference on Thursday.
However, he added that the sides have not got to the stage where solutions to issues pertaining to the Iranian nuclear issue can be worked out.
Iran and the P5+1 group of world powers ended the first day of comprehensive talks in the Kazakh city of Almaty on Friday with the main focus being on Iran’s nuclear energy program.
The Iranian delegation is headed by Secretary of the Supreme National Security Council (SNSC) Saeed Jalili while the EU foreign policy chief, Catherine Ashton, represents the P5+1 group -- Britain, China, France, Russia, the US and Germany.
The Russian delegation to the talks is led by Deputy Foreign Minister Sergei Ryabkov.
On Wednesday, Russian Deputy Foreign Minister Igor Morgulov said the unconditional recognition of Iran’s right to civilian nuclear energy is key to the settlement of the West’s dispute with the Islamic Republic over its nuclear energy program.
As two permanent members of the UN Security Council, Russia and China share common positions which are based on objection to the West’s unilateral sanctions and political pressure against Iran.
Moscow and Beijing both believe that such "counterproductive" measures will only undermine diplomatic efforts aimed at finding a solution to the issue.