Diamond

Diamond comes from the Old French diamant and Medieval Latin diamas, ultimately from the Greek adamas, meaning "unconquerable" or "invincible" — the same root as adamant. The gemstone takes its name from its extraordinary hardness, the hardest natural substance on Earth. As a name, Diamond carries connotations of rarity, brilliance, and indestructible value.

Diamond ranks #146 among America's most popular pet names, a gemstone name that has been particularly beloved in certain communities for its associations with brilliance, strength, and exceptional beauty. Naming a companion Diamond is an expression of how deeply valued they are — this is not just a pet, this is a treasure. The name has a particular sparkle when spoken aloud, and it suits companions with a certain luminous quality, whether in their coat, their eyes, or the way they move through a room.