Colorful Disk Framed in Silvertone Ouroboros Necklace

Beautiful domed disc with aqua, red, white and golden sparkles surrounded by a silvertone frame of a snake or serpent biting its tail. The pendant hangs from a substantial silvertone chain with hinged clasp. I think the pendnt is Lucite.
Pendant measures 2” by 1 ¾”.
Chain is 9” drop.
Excellent condition.
A bit of background on the image.
Ouroboros

The Serpent biting its own tail is first seen as early as 1600 years BC in Egypt as a symbol of the sun, and represented the travels of the sun disk. From there it moved to the Phonecians and then to the Greeks, who gave it its name, Ouroboros, which means devouring its tail. In mythology, the Oroborus is a symbol representing the Milky Way galaxy.
The ouroboros or uroboros (,) is an ancient symbol depicting a serpent or dragon eating its own tail. Originating in ancient Egyptian iconography, the ouroboros entered Western tradition via Greek magical tradition and was adopted as a symbol in Gnosticism and Hermeticism and most notably in alchemy. The term derives from Ancient Greek οὐροβόρος, from οὐρά oura 'tail' plus -βορός -boros '-eating'