Tiffany & Company Vintage 18K Yellow Gold Sapphires & Round Brilliant Cut Diamonds Necklace, Earrings & Ring Set. The Necklace weighs 4.4 grams and has a 16" link chain. The center stone is a Pear Shape Royal Blue Sapphire weighing 3.07 ct, the ring also contains 31 Natural Round Brilliant Cut Diamonds weighing approximately 1.50 ct total weight, G in color, VS+ in clarity. The measurements of the Pendant are 14.9 mm wide and 19.4 mm tall. The clasp of the necklace is stamped "750", pendant is stamped "TIFFANY & CO 18K". The Earrings contain two Oval Cut Royal Blue Sapphires weighing 2.84 ct total weight and 48 Round Brilliant Cut Diamonds weighing approximately 2.64 ct, G+ in color, VS+ in clarity. The earrings weigh 9.9 grams combine, with measurements of 16 mm long x 15 mm wide (each). Omega back earrings are stamped "TIFFANY & CO 750" & "18K". The Ring weighs 4.3 grams & is size 6. The center stone on the ring is a Oval Cut Royal Blue Sapphire weighing 2.43 ct. ct & 10 Round Brilliant Cut diamonds weighing approximately 1 ct total weight, G+ in color, VS+ in clarity. The ring is stamped "TIFFANY & CO 750". The set will come with 3 GIA certificates, Tiffany & Co. inner set box & ring box.