This is a magnificent and authentic pendant and chain from Tiffany & Co. The pendant has a long frame in platinum with a tiny milgrain flower as the bail with small diamond followed by 4 round cut diamond in milgrain bezel mount, below that is a large emerald cut green tourmaline gemstone with a total weight of 10.55 carats, it has a floral form around the stone with with round cut diamonds, all totaling 51 points. This gorgeous pendant comes with a slender link platinum chain by Tiffany & Co. They both are signed Tiffany & Co. PT950 the pendant has a sn#24215946 Comes with a copy of Tiffany & Co. authentication paper. Material: platinum Diamonds: 0.51 total carat weight Color: G Clarity: VS1 Gemstones: 10.55 total carat weight Measurements: chain is: 16" long Pendant: 1.90" long x 0.75" wide x 0.32" high Weight: 10.1 grams