AAA Announces 2019 Diamond Award Winners On Jan. 31, AAA announced its annual lists of Four and Five Diamond hotels. A total of 123 properties in the United States, Canada, Mexico and the Caribbean were added to the prestigious lists this year. [Read: Best Hotels in the USA .] AAA's Diamond Rating is one of the few hotel appraisal systems that rely on physical evaluations. The company's team of inspectors assesses each of the more than 27,000 eligible properties based on comfort, cleanliness, security and available services and amenities. Each hotel is then awarded a Diamond Rating between one and five, with five being the best. Of the more than 27,000 evaluated hotels, just 121 properties earned Five Diamond distinction for 2019. Ten of those properties are newcomers, including two hotels that are the first properties to receive the Five Diamond award in their areas. Those hotels are the Hotel Emma in San Antonio, Texas, and the Rosewood San Miguel de Allende in San Miguel de Allende, Mexico. The remaining eight propert…