Authentic Tiffany & Co. 18K Gold & Silver Necklace

Authentic Tiffany & Co. interlocking circles necklace/ pendant. 18K gold and sterling silver interlocking circles. From the Tiffany & Co 1837 Collection. Necklace is on a sterling silver 19 inch custom length chain. I paid an extra $30 to have the chain made 19 inches (as opposed to the standard 16 inch chain). My total out of pocket cost was $765 with the longer chain. Chain includes Tiffany authentication stamp on clasp. This beautiful necklace is in excellent condition.