Yellow gold chain and earring set. Black and white stones. 14k gold. Gorgeous.

Yellow gold chain and earring set. Black and gray/white stones. The gold is 14K, stamped. the chain is quite long. 36" from one end to the other. I got this as a gift years ago. It was purchased at Costco. Not quite sure what the stones are, but I know Costco sells very good quality jewelery. Wore it maybe twice to a x-mas party. Gorgeous set, but I don't wear it.