From the AWAD archives:

Quote:

chatoyant (shuh-TOI-uhnt) adjective Having a changeable luster like that of a cat's eye at night.




I understood this word to be a technical term from gemmery to mean, basically, having a stripe of different-coloured stone. Modern dictionaries (see below) don't mention the figurative sense.

Quote:

chatoyant adjective (of a gem, esp. when cut en cabochon) showing a band of bright reflected light caused by aligned inclusions in the stone. DERIVATIVES chatoyance noun chatoyancy noun.ORIGIN late 18th cent.: French, present participle of chatoyer ‘to shimmer.’