Equestria Girls Rarity
The human version of Rarity is a counterpart to the pony Rarity. She attends Canterlot High School, and appears to be focused on fashion and design much like her counterpark. She was once friends with the human counterparts of Applejack, Fluttershy, Rainbow Dash, and Pinkie Pie, but their friendship was broken up by Sunset Shimmer. When Twilight Sparkle comes from Equestria in pursuit of a crown (actually the Element of Magic) Sunset Shimmer had stolen, Rarity agrees to help Twilight win it.
During the final showdown with Sunset Shimmer, the crown's magic grants Rarity pony-like features, including pony ears, and a long ponytail resembling a real pony tail. After Sunset Shimmer's defeat, Rarity would retain these features, though she returns to normal after Twilight returns to Equestria.
The earliest Rarity release featured a molded top and attached skirt and a pair of sunglasses.
This version was articulated at the elbows and knees. Rarity came with two outfits and matching boots, a headband, purse, and a clip-in hair extension.
Pep Rally Rarity
This version was part of a set that included Luna, Rainbow Dash, Fluttershy, and Applejack. Rarity had her own cheerleading outfit with a matching pompom attached to her wrist.
Rainbow Rocks Rarity
This version came with a rock and roll themed outfit and boots, and a keytar. Also included was a Playful Pony-sized toy of Rarity. Both the pony and the doll had rainbow colored streaks in their hair.