A Jeweler is a person who designs, makes, repairs, or sells jewelry. Jewellery or jewelry is small decorative items worn for personal adornment, such as brooches, rings, necklaces, earrings, and bracelets. Jewellery may be attached to the body or the clothes, and the term is restricted to durable ornaments, excluding flowers for example.
In creating jewellery, gemstones, coins, or other precious items are often used, and they are typically set into precious metals and alloys e.g. bronze, gold, white gold, platinum, palladium, titanium, or silver. Most American and European gold jewellery is made of an alloy of gold, the purity of which is stated in karats, indicated by a number followed by the letter K.
vCalc's Jeweler library contains functions and other gem and precious metal related calculations and constants.