The Espeon GX (SV60) card can be found in the Hidden Fates set.
Recently sold 13 times and based on those sales is worth around £39.95.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £31.70 to £48.20, making it quite stable.
This Rare Shiny GX card was illustrated by 5ban Graphics.
The fact that it is a GX card makes it one of the more valuable cards.