The Tiffany & Co. Key Pendant Necklace from the 1990-2000s, weighing 7.1 grams, is crafted in 18k rose gold and features a round brilliant cut diamond at the heart of the iconic key design. This vintage piece includes an 18-inch chain with pendant measuring 1.55 x 0.57 inches, stamped "Tiffany & Co. 750", and remains in excellent condition, showcasing the romantic elegance and exceptional craftsmanship characteristic of Tiffany & Co.'s timeless key collection. Very good conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. Upon Request, Auction House may provide an appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.