14K Gold Large Synthetic Cat's Eye Ring. The synthetic cat's eye measures 7/8 inches long by 1/2 inch wide. It is a beautiful natural looking green synthetic cat's eye. A natural cat's eye this color and size would appraise for $30,000. Only a gem lab or an experienced expert jewelry appraiser could tell it is synthetic. It is mounted in a custom made 14K designer gold ring. It weighs 14.9 grams just shy of 1/2 ounce of gold. Ring size 7. It measures across the top face of the ring 1 inch. From side to side across of the ring it measures 3/4 inch. The ring is in excellent condition guaranteed to please the new owner.