There are many metals and materials used for developing jewelry. Gemstones, coins and other precious items are very often used for creating jewellery items, and they are typically set into precious metals. Nearly alloy of every metal has been used for developing jewellery items. In Roman times, bronze was the most used alloy for creating jewellery. Now in modern times jewellery is made usually from the following metals, i.e. gold, silver, palladium, titanium, white gold etc. Mostly gold jewelry used in America and Europe is made of an alloy of gold, karats is the unit for its purity, presented as a number followed by K. The gold jewellery in UK must be of 9K (37.5% pure gold) and whereas in America it must be at least 10K purity (41.7% pure gold). As we go up the purity level they are less common with alloys at 22K (91.5% pure gold), and 24 karats gold is considered to be very delicate for making jewellery items in America and Europe it includes up to 99.99% pure gold. In countries of Asia, Africa and Middle East these high purity alloys are widely used. The Silver used in making jewelry items is mostly sterling silver ie. 92.5 % pure silver. Apart from these major materials which are used in jewelry others include wood, natural animal substances such as bone and ivory, glass, such as fused-glass or enamel, plastics, natural and polymer clay.
Beads are very frequently used in making jewellery. Jewellery made of beads commonly includes necklaces, bracelets, earrings, rings and belts. They may be made of metal, shells, gemstones, glass, wood, natural and polymer clay. Beads which are used can be large or small, the smallest type of beads used are known as seed beads, these are the beads used for the "woven" style of beaded jewellery.
Another metal which is in very much craze among the females in jewellery is Diamond. Diamonds were first mined in India. Diamond is very common in rings, necklaces, nose rings, earrings, bracelets etc.
There are often one more item which is used in jewelry, i.e. Gemstones. Includes precious as well as semiprecious stones used for jewelry. Rubies are the among the most highly valued precious stones and is known for its intense red color. Sapphire is the next precious stone, its most popular form is blue sapphire. The third stone among the 3 most precious stones includes Emerald, known for its fine green to bluish green color. The other gemstones includes amber, amethyst, jade, jasper, quartz, turquoise.