Qatar's decision to aid Turkey in the face of American sanctions against the country may finally be a snub too far for its close relationship with the US.
Without strategic clarity from the US, the Saudis and their allies are under little pressure to thaw their frozen relationship with Qatar.
Saudi Arabia and the UAE led a group of countries that have severed all ties to fellow American ally Qatar over its foreign policy. The US will play a key role in whether it accedes to their demands.
Saudi Arabia and Qatar have butted heads before, but this time seems different.
The interventionist foreign policy of the Gulf states is increasingly at odds with their economic security.
Most countries welcomed the deal as they jockey to boost trade with the Islamic Republic and gain from the eventual end of sanctions.