Officially open (along w/ Marriott Exec Apts too). MAR press release:
https://news.marriott.com/2019/03/ma...matic-quarter/
"... announced the opening of Riyadh Marriott Hotel Diplomatic Quarter and Marriott Executive Apartments Riyadh, Diplomatic Quarter. The complex is strategically located in the heart of one of the most sought-after areas in the city with easy access to key embassies and major corporate headquarters, just a 30-minute drive from King Khalid International Airport....The complex is the first five-star full service hotel in the Diplomatic Quarter and features 80 spacious modern rooms, and 140 fully equipped apartments. "