TOUS MANIFESTO necklace with 18kt gold plating over silver and onyx. Size of the gemstones: 4 mm. Special TOUS MANIFESTO closure with 18kt gold plating over silver. Size of the clasp: 19 x 9 mm. Necklace length: 43 cm. It is made of sterling silver with 18 to 23kt gold plating and has a thickness of 3 microns. This quality guarantees a greater durability of the jewel.