4-piece onyx and diamond accent jewelry set

Onyx and diamond accent pendent necklace on silver chain, ring, and stud earrings. I am fairly certain the ring is a size 7. Set was purchased from Macy’s Fine Jewelry department. Worn only a few times. From Macy’s listing: Onyx: 7mm (ring and necklace); 6mm (earrings) Diamond accent Approx. necklace length: 18” (approx 2/3” drop) Spring ring closure; cable link chain Approx earring diameter: 3/8” Post back closure on earrings Smoke-free, dog-friendly home