Which organization rates hotels using the diamond award system?

The American Automobile Association (AAA) is the organization that rates hotels using the diamond award system. This system is widely recognized in the hospitality industry for its comprehensive evaluation of accommodations across various categories, including service, amenities, and overall guest experience. Hotels are awarded a certain number of diamonds, with five diamonds representing the highest level of luxury and service.

AAA's diamond rating system is particularly valuable for travelers seeking quality assurance in their hotel choices, as it provides a standardized benchmark that consumers can trust. The association's thorough inspection process allows potential guests to gauge not only the quality of the facilities but also the level of service they can expect during their stay.

The other organizations listed, while relevant to the broader tourism and travel industry, utilize different methods or criteria for evaluation and do not employ the diamond rating system specific to hotels.