1st item: 14K (tested) white gold diamond, opal and aquamarine contemporary ring, containing 18 round brilliant diamonds with a total weight of approximately .54 ct., (approx. SI-I, J-K), one trilliant cut opal and one trapezoid aquamarine, partial maker's mark inside shank for designer Susan Sanders, Alexandria, VA, ring size: 6-1/2, 18.9 grams. 2nd item: 10K (tested) yellow gold and diamond petal design ring containing 7 round brilliant cut diamonds with a total weight of approximately .70 ct (approx SI, J-K), ring size: 7, 11.2 grams. 3rd item: 14K (marked) yellow gold black opal ring set in naturalistic mounting: 7/8" H x 7/8" W overall, ring size: 7-1/2, 13.9 grams. 4th item: 14K (marked and tested) yellow gold and black stone contemporary ring, maker's mark interior of band, hand-inscribed, "Noiseux" for designer Debbie Noiseux, ring size: 9, 6.7 grams. Provenance: Property of the estate of Arlene Goldstine, Knoxville, TN. Condition: All in very good condition with some surface scratches.