Jewelry or jewellery is a form of personal adornment and fashion accessories, manifesting itself as Anklet, Bangles, Bracelets, Brooch, Earrings, Necklaces, Pendant, Ring, Watches and more. Jewelry can be made from any material, usually gemstones, metals as a Gold, Silver, Palladium, Platinum, Rhodium, Britannia silver, Colored gold, Crown gold, Electrum, Platinum sterling, Shakudo, Shibuichi, Sterling silver, Tumbaga, Brass, Bronze, Copper, Pewter, Stainless steel, Titanium or shells, glass, even plastics and more. The person how made it is a Jeweler.
There are hundreds and hundreds kinds of jewelry (jewel, piece of jewelry, gem, trinket) and the factors affecting the choice of materials are cultural differences, price and the availability of the materials.