This Rose-ringed parakeet is unmistakable with light green plumage and long tail. Adult males have the ""rose-ring"". The chin of the adult male is black with layers of black, turquoise, and rose on a collar that thins below the auriculars. The rose-ring continues to the nape of the neck. The nape on the male has a turquoise blue wash over the light green base feathers. It takes between 18-32 months for the males to develop the rose-ring. Juveniles and females lack neck and chin markings. The adult female has a faint emerald green collar that is difficult to discern in the field. The tail is long and thin with a blue central tail feather. The outer tail feathers are medium green washed with blue. The tail of females and juveniles is slightly shorter than that of the male. The underside of the tail and wings are canary yellow.