Pokédex entries.
Here you'll find all Pokédex entries for Diancie. Because Diancie did not appear in any Pokémon games prior to Pokémon X/Y this list will only cover entries from generation VI to present.
X: A sudden transformation of Carbink, its pink, glimmering body is said to be the loveliest sight in the whole world.
Y: It can instantly create many diamonds by compressing the carbon in the air between its hands.
Omega Ruby: A sudden transformation of Carbink, its pink, glimmering body is said to be the loveliest sight in the whole world.
Alpha Sapphire: It can instantly create many diamonds by compressing the carbon in the air between its hands.