Do they sell diamond earrings

They have a cubic zirconia similar style. But, I have not scene the real diamonds.

They have a jewelry section and I know that they sell diamond necklaces and bracelets, but not sure earrings though.

They have jewelry in the store, not sure if it's in stock. But you can check Costco online. They have all their jewelry on their online store.

I truly do NOT know. However, I'm certain you can call and ask...