I would hyphenate it: I got this amazing copper-wire-wrapped amethyst pendant by Jessica. "by Jessica" means to me that "Jessica" is the brand name of the maker (may also be the maker's personal name). Is that what you intend?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
I would hyphenate it:
I got this amazing copper-wire-wrapped amethyst pendant by Jessica.
"by Jessica" means to me that "Jessica" is the brand name of the maker (may also be the maker's personal name). Is that what you intend?