In China is the gemstone for excellence: the jade is a mineral ancient, valuable and widely used in jewelry. Now not only in the East, but also by many Western jewelers, who use the jades for their creations. But beware: the jade not all the same. Read this guide to learn more and get to know it.
Diamanti, rubini, smeraldi, zaffiri: quanto valgono? Come riconoscerli? C’è chi li compra per farsi perdonare qualcosa,