Saudi Crown Prince thanks the United States and Kuwait for mediating.
Kuwait announced the reopening of Saudi-Qatar borders on . Monday.
Announcement came on the eve of the 41st GCC summit.
Saudi Arabia, the United Arab Emirates, Bahrain and Egypt cut all diplomatic and transport ties with Qatar in June 2017.
The Kuwait Amir has been acting as a mediator to resolve the dispute.
UAE complained about Qatar's discriminatory measures against its goods and distributors.