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Explanation: This came up in another translation, but as other translators here have said, it seems that if something is a specific product, it should use the original name [ thanks for that tip btw! :) ]
My research showed that the 神威福籠首飾 is a specific jewelery product produced by a company called かすう工房.
Apparently, this necklace has a Hokkaido region theme. Thus 神威="kamui", taken from "Kamuimisaki" which is a popular tourist destination in Hokkaido.
"福籠" in this case is pronounced "fukurou" as verified by the manufacturer's blog in my reference. fukurou is an owl, thus the owl in the necklace design.
"首飾" is necklace. I suppose you can keep kubikazari or use the English necklace here, since the preceding words are the main product name.