MOSCOW - The latest round of talks between Iran and six world powers as well as the European Union (EU) ended here late Tuesday, with all parties impressed with the pragmatism and looking forward to a new round of talks on July 3 in Istanbul.

The experts will meet soon for the next round of talks between Iran and the P5+1 - the five permanent members of the UN Security Council, namely the United States, Britain, France, Russia and China, plus Germany - as part of the "three priority directions" of the "six plus one" mechanism, Russian Deputy Foreign Minister Sergei Ryabkov said on Tuesday night as the Moscow talks were concluded.

Following the experts' talks, a meeting between EU foreign policy chief Catherine Ashton's deputy and Iranian Supreme National Security Council Deputy Secretary Ali Bageri will take place. Then there will be a meeting between Ashton and Iranian Supreme National Security Council Secretary Saeed Jalili, said the senior Russian diplomat.

Ashton told reporters here that the experts will discuss details of Iran's response to the proposals from the P5+1 group at the Istanbul meeting.

According to the top EU official, the P5+1 had got the "first Iranian answer" regarding the essence of its claims. The group thus knew how to step further and make further progress.

During the two-day intensive talks, the P5+1 group urged Iran to stop enriching uranium up to 20 percent, close the nuke facility and take the already 20-percent-enriched uranium out of the country.

The EU foreign policy chief told reporters that she was prepared to "step forward" if Iran responded with positive reactions toward mutual trust building.

Iran, for its part, called the Moscow talks "more realistic and serious" compared with the Baghdad talks last month and welcomed the P5+1 group's reactions to its stance.

Jalili said Tehran is ready to cooperate with the International Atomic Energy Agency for lifting international sanctions against his country.

The problem with Iran was not transparency but trust, said the top negotiator, adding that relevant parties should avoid " negative attitude" toward Iran.

He warned that the looming EU oil embargo would hamper the nuclear talks. "Every measure that contradicts the strategy of cooperation will not lead to success at the talks."

Meanwhile, Jalili insisted on peaceful enrichment of uranium as "an unalienable right of Iran," which remains "the key element" of Iran's proposals.

The senior Iranian diplomat counted on the new round of talks to help ease differences between Iran and the six world powers and make breakthroughs.

Le Yucheng, assistant foreign minister who headed the Chinese delegation, said the Moscow round of talks were pragmatic and helpful, paving the way for further dialogue toward easing the existing divergences.

Iran responded to a package proposal from the P5+1 group while the latter reacted to an Iran-initiated five-point proposal. Though "significant differences" remained, both sides got a better understanding of each other's stance, Le said, adding that experts from Iran and the P5+1 group will meet in Istanbul early next month for "more detailed discussions" over the proposals.

Describing the negotiations as "frank and thorough," Le urged all relevant parties to adopt a "realistic and pragmatic" approach and fully take into account each other's concerns, so as to promote peaceful talks.

Differences should be taken "objectively" and all parties involved need to seek common ground, Le suggested.

The diplomat said China always advocates that dialogue and negotiation are the only correct way to resolve the Iran nuclear issue, and will continue to play its constructive role in the pursuit of a peaceful and political solution to the issue.