Yellow CZ halo ring in gold over sterling silver size 9

Pre-owned statement ring in good condition with minor wear and one missing accent stone. The setting is plated in yellow gold over a sterling silver base, though it’s not marked with a 925 stamp. The center stone is a vibrant cushion-cut yellow cubic zirconia measuring about 10.8mm, surrounded by smaller clear CZs along the halo and band. Ring size 9, total weight 5.50 grams. Reasonable offers considered