Carbink is a gray, rock-like Pokémon with a conical body. Its body has light blue crystals of various shapes and sizes embedded in it. A white, fluffy collar surrounds its small head. It uses this soft mane to polish the gems of other Carbink. It has bright blue eyes, a light blue crystal on top of its head, and flat diamond-shaped ears. Due to its small stature, it ties with Minior and Dwebble as the shortest Rock-type.
Carbink is created from high temperatures and pressures underground and is occasionally found during cave excavations. Following birth, it can sleep for millions of years. It is preyed upon by Sableye, and Gabite also likes to capture it. Carbink defends itself by shooting high-energy beams from the gem on its head. Rarely, Carbink will undergo a strange mutation and transform into Diancie. It is said that a pack of Carbink lives deep underground with their queen in a jeweled kingdom. Carbink can be found on occasion during the excavation of caves.
Carbink is tied with Diancie for having the highest base Defense of all Fairy types, with a base stat of 150.
Excluding Legendary and Mythical Pokémon, Carbink is the only gender unknown Pokémon introduced in Generation VI.
Carbink is the only Pokémon that can be transferred into Pokémon Scarlet and Violet that is not a First partner Pokémon, Legendary, Mythical, in the PaldeaPokédex, or has an evolutionary relative in the Paldea Pokédex. However, it is strongly linked with the Mythical Pokémon Diancie.