"We have made incremental progress, no breakthrough, no breakdowns, no one walked out", the United Nations envoy told reporters.
Some diplomats suspect the Moscow and Cairo platforms, which are much less opposed to President Bashar al-Assad than the HNC is, are little more than a mechanism created by Assad's ally Russian Federation to prevent direct negotiations and force the HNC to dilute its stance.
Government delegation chief says direct meeting with opposition was not raised with his team at Geneva talks.
"We have just concluded the seventh session of the intra-Syrian dialogue in Geneva and we have achieved an incremental progress and we established a technical consultative mechanism to get deeper into issues ..."
The envoy met separately during the week with representatives of Syria's government and opposition groups, but the two sides did not talk to each other directly.
De Mistura said that by the next round of talks he hopes the global community will be able to push all sides to "finally sit in the same room and start talking about substance".
"At present, there are still big differences between and among the Syrian government and the oppositions, so a step-by-step approach should be taken to handle the relatively easier problems first so as to forge more consensus and accumulate mutual trust", he said.
De Mistura noted the precursor to the latest Geneva talks included a May meeting involving Russia and Turkey in Astana, Kazakhstan, followed by an agreement earlier this month in Amman brokered by the United States, Russia, and Jordan for a ceasefire in southern Syria, which coincided with the G20 summit in Hamburg where Russian President Vladimir Putin met with his US counterpart Donald Trump.
The UN Syria envoy closed the latest round of sputtering peace talks on Friday insisting "incremental progress" was made, driving hope that face-to-face negotiations between rebels and the Damascus regime may soon be possible.
Assad's government and the opposition repeated long-held positions before leaving Geneva on Friday.
Al-Jaafari said in his statements to the press in the Swiss city that the talks focused on combating terrorism and the legal issues pertaining to a new Constitution were the central topics with the opposition.
He indicated that the Syrian Arab Republic delegation proposed its viewpoint on some important issues with regard to the constitutional aspects, and it expressed readiness to discuss the four baskets in the next round and to set ideas for that goal.
The HNC again blasted the government for stalling the process.
In New York, France's ambassador to the UN, Francois Delattre, said a contact group would aim to support de Mistura's efforts.