The Grand Diamond City Hotel & Casino is perfectly situated to be both centrally located in the heart of Poipet City and easily accessible from major transport hubs where you can plan to visit Indochina Region. A delightful blend of the Asia ancient and modern worlds. VIVA POIPET is a unique and exciting city. the Grand Diamond City welcomes you with gracious, friendly service. From warm smiles at the door to tasteful interior decor, every effort has been made to make you feel at home. You may ask why we try so hard. The answer is because at GRAND DIAMOND CITY, Poipet, we believe even the smallest details can make a big impression.