SAPPHIRE AND DIAMOND RING, CIRCA 1880, TIFFANY & CO A cushion shaped cabochon sapphire weighing 2.94 carats, claw set between a pair of old European-cut diamonds.18ct gold, signed Tiffany & Co. Jewellery Tiffany, Sapphire Antique Ring, Jewelry Girl, Luxurious Life, Tiffany Jewelry, Sapphire And Diamond Ring, Blue Stones, Market Value, Price Guide