Jewelry is made of
In addition to gold, silver, and platinum, the precious materials most widely used in jewelry are gems—any precious or semiprecious stone. By definition this group also includes some animal and vegetable products with precious characteristics, such as amber, pearls, and coral. they might fashion a brooch out of steel or plastic rather than gold or platinum . Furthermore, in addition to its decorative function, during much of its history jewelry has also been worn as a sign of social rank—forbidden by sumptuary laws to all but the ruling classes—and as a talisman to avert evil and bring good luck.