Oro Nativo® is an ancient gold finishing process, handed down from generation to generation within the Torrini family. This technique was typical of the ancient Florentine goldsmith's workshops at the end of 1500 AD. It is a semi-gloss finish, which enhances the naturalcolour of gold, without the use of chemical procedures. After undergoing the various stages of processing, the jewel is placed in a special liquid called "Acqua Celliniana" (whose formula is secret and exclusive to Torrini), and then be partially polished with a brush of pure cotton. This simple procedure restores the natural colour of the metal, called Oro Nativo® because its distinctive feature is that it makes a jewel timeless. In the sixteenth century Benvenuto Cellini wrote a tractise on goldsmithing. In the volumes, the Maestro mentions a special liquid that enhances the natural color of gold, making the jewel unique. As tangible proof of his mastery, we can admire the salt cup that was commissioned by the King of France, Francis I. The work presents two Greek Gods, Gea and Poseidon, who, when they meet, create allegorical representations of clear origin from Michelangelo. The harmony of the forms, in pure mannerist style, marry the harmony dedicated to the rediscovery of nature. For 650 years, Torrini has preserved the ancient Renaissance values that have made Florence a jewel for humanity.