Check the listing for details. Adjustable Pewter Ring with Natural Stone – Unique Design, Various Gemstones. Condition: New. Listed at 26.34 USD. Add a touch of mystique and individuality to your jewelry collection with this beautiful adjustable pewter ring, featuring a genuine stone set at its center. Each ring is one-of-a-kind - with varying designs, shapes, colors, and stone patterns - making your piece truly unique.