The two top diplomats agreed to a "personal meeting" after "working on the remaining details for an agreement" on fighting jihadists and pushing forward the peace process in the war-torn country in a phone call, a foreign ministry statement said.
Russia and the US, on opposite sides in the five-year conflict in Syria, have been trying to thrash out a deal in recent weeks to revive a ceasefire on the ground and coordinate strikes against the Islamic State group and other jihadists.
Russia is flying a bombing campaign in support of strongman leader Bashar al-Assad, while the United States backs rebels groups fighting to oust him from power.
Lavrov also slammed new US sanctions slapped on Russia over the crisis in Ukraine insisting that it hampered joint efforts by the two sides "including those aimed at resolving regional conflicts", the statement said.