Platinum and diamond ring, Tiffany & Co., the round brilliant-cut diamond weighing 0.45 carats is half collet-set between ribbon motifs decorated with brilliant-cut diamonds to a hoop similarly embellished, size O, signed Tiffany & Co., numbered 30574435. Accompanied by a Tiffany & Co. diamond certificate numbered 30574435/N11010632 stating that 0.45 carat diamond is F colour, VS1 clarity, laser inscribed