Huge vintage engagement ring used as an advertising prop in a jewelry store display. Ornate silver metal band measures 6-1/2 inches in diameter. Measurement back to front including silver setting and "diamond" (which I think is Lucite) is 8 inches. Nice clear stone is 2-7/8 inches in diameter and has a few minor scratches and no chips. Bling ring is in excellent condition. This ring is perfect for decorating in a jewelry shop window or antiques show booth.