Cartier Agrafe 18k Yellow Gold Front Clasp Long Box Link Necklace Service Paper. This authentic necklace is from Cartier, it is crafted from solid 18k yellow gold and comes from Cartier's Agrafe collection. The piece features long box link chain with a open ring and hook front clasp which is displayed in the front and lay flat just below the collarbone. It is a fine designer piece that will look absolutely fabulous with any attire, and is fully signed Cartier with the serial number and metal content. Including a Cartier service paper. Material: Solid 18k yellow gold Hallmark: Cartier 750 873972 Measurements: 16.5" Long and 5mm wide x 3.5mm high Weight: 68.0 grams Stock#: 30646