I have a necklace that I was told at a young age that it was from rainbow brite. Can someone please help verify this?

It's a beautiful pendent! However, it isn't an official "Rainbow Brite" design. It looks too "complicated". Rainbow Brite jewelry usually will have characters or use art easily identifiable as "Rainbow Brite" which would be more simplistic. But I wouldn't rule it out yet without checking it for a Hallmark or Rainbow Brite mark. Is there anything on the back?

They did make fine jewelry later in the production. These enamel pendants and pins were created by Kat's Meow.

Where did you find that necklace at? Curious.