Beautiful very large statement ring in sterling silver with a rock crystal quartz stone, circa 1980. Marked STER for sterling, signed RT, and marked with a copyright symbol. The sterling piece backing the stone is cut to fit the stone, and has a decorative surface and oxidized finish. The stone is held by large prongs and a thick band of wire. Also with decorative twisted thick wire. Ring size 6.5. Great size -- The top is 1 3/8 inches long and 11/16 inch wide. It weighs 22 grams. Excellent condition with what may be a tiny loss at the point of the crystal, or it may be naturally occurring. Not noticeable in the overall natural rough look of the stone. Display form is life size. Photos enlarged to show detail.