G1 ID Translucent
She is full of sparkles? If rather confetti bits that may glow in the dark, scroll down.
If your pony is one of these look carefully at her face. There are mail order versions with tiny facial symbols, they are worth about twice as much as the ones without.
Glow 'n Show
If you have Dazzleglow, look carefully at her confetti bits. There is an alternate version with blue hearts which is harder to find.