The Celebi Star (100 / 100) card can be found in the Crystal Guardians set.
Recently sold 4 times and based on those sales is worth around £113.62.
Currently, there are 4 open listings for this card on ebay.
This card sells in the range of £13.51 to £213.73, making it highly volatile.
This Rare Holo Star card was illustrated by Masakazu Fukuda.