Sui Generis is latin for "one of a kind"

But what does it mean? A person or thing that is unique, in a class by itself. It is a phrase that means "of its (his, her, their) own kind; in a class by itself; unique.

This gold necklace says "sui generis" in the front and in the back it has some dots embellishment,

DETAILS:

metal: 14K yellow gold, cable chain 16" long

Made to order. Ships in 2 to 3 weeks.