Vintage estate jewelry Steuben 18 karat yellow gold crystal glass necklace. This Steuben acorn necklace is in its original box which measures 7 and one half inches square. The necklace was designed by Schulze in 1977 and was discontinued by Steuben in 1979. Sold in a very limited edition in 18 karat gold and crystal. This Acorn Crystal is 4 and three quarter inches in circumference and the acorns measures 3 and one quarter inches by two and one quarter inches. A truly unique piece of vintage jewelry that is no longer made and is in such excellent condition.