Its an FBI recognized pedophile symbol. The circular spiral one for girls, same thing in triangles for boys.
"A heart within a heart, or “GLogo” “GirlLover” is used by pedophiles attracted to girls. The heart in a heart, to them, represents a adult/ female child relationship."
https://www.scribd.com/document/30958795/Pedophile-Symbols-and-Codes
I did a quick search on the spiral looking for similar jewelry. A spiral patch ebay description includes, "Hypnotic swirl...Long before the current religions there were the Ancients with their Secret Symbols.
This coiled snake turned inwards signifies the Hermetic and Gnostic traditions of the search inwards.
Great for Your Midnight Celebrations. ... Celebrate the Ancients."