Why can I not find "jewel-bright" in the dictionaries? Is it a set phrase? The meaning is as bright as a jewel, isn't it?
The context wherein I found it:
Twenty minutes later, they left Eeylops Owl Emporium, which had been dark and full of rustling and flickering, jewel-bright eyes. Harry now carried a large cage that held a beautiful snowy owl, fast asleep with her head under her wing. He couldn't stop stammering his thanks, sounding just like Professor Quirrell.