The chain is gold filled, not solid gold but the pendant and earrings are marked 10k.

I am assuming the stones are CZ as they are not prong set, set in a white plaster? like substance, I don't know the official name of this type of setting.

The markings on the back of the pendant also read Jordan and AU as well as 10k plus the the earring wires are also marked.

This set came from an estate sale and look to be never worn. But they were sitting in the box for years so the gold parts could use a bit of polishing to really shine. I didn't want to remove them from the box to do so. I can never get earrings of this sort back in right!