Family name ダイアモンド (Diamond 
, ダイアモンド, Deasismont 
) , across the world, is a common surname. The last name ダイアモンド is habitual in Saint Kitts and Nevis, where it is quite a common surname, Saint Vincent and the Grenadines, and Jersey (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in the United States, Nigeria, and the United Kingdom. Also, ダイアモンド is the forename as well as the last name.