Located in Istanbul's Historic Peninsula, Diamond Royal Hotel offers relaxation activities such as a sauna and Turkish bath, and massage treatments for an extra charge. Free Wi-Fi is available at Diamond Royal Hotel. Each room has a private bathroom with a shower. The hotel offers 24-hour reception, luggage storage, and currency exchange services. Dry cleaning, ironing services, and car rental are available upon request. A complimentary daily breakfast is served as a buffet.

Guests can also enjoy lunch and dinner at the hotel's restaurant. A variety of drinks are available at the hotel bar.