Out of the earth comes a remarkable metal with an unparalleled combination of chemical and physical properties that make it invaluable to a wide range of everyday applications essential to our modern life. Thousands of common, everyday appliances require `Gold` to ensure perfect performance over a long period of time. This indestructible metal is completely recyclable and virtually immune to the effects of air, water, and oxygen.

Gold itself never tarnishes; however, the alloys used with gold to strengthen it are susceptible to wear with time and contact with the air. Pure gold (24 carat) will never tarnish. However, pure gold is far too soft a metal to be used for everyday wear jewellery. Whilst 24 carat gold is exceptionally beautiful, the quality of the finished item cannot be guaranteed to last your lifetime. The two types of gold sold are 18 carat (which is three quarters pure) and 9 carat (37.5% pure). The metals used in alloy with these gold items serve purely to strengthen the gold itself (except in the case of rose gold and white gold where other metals are used to change the colouration of the gold). These metals are susceptible to change caused by contact with the air. The 14ct Gold is the most appropriate standard for threaded piercing jewellery, the metal being strong enough to maintain the threaded features even after repeated usage. 18ct is appropriate for general usage, the softness and gentleness soothes the body. Nickel is not used as a stabilizing agent in any product and skilled Goldsmiths handcraft all pieces.Even 9ct gold (375 gold) is only 37.5% gold and 62.5% impure alloying metal. Recently published data has confirmed that the corrosion resistance of gold alloy decreases significantly as the gold content is reduced. Low gold alloys corrode significantly and release metallic ions directly into body tissues, contaminating the wearer.

Properties of Gold
Gold is yellow in color when pure. It is the most malleable and ductile of all metals. It can be hammered into sheets less than 1/300,000 of an inch thick, and one ounce of gold can be drawn into a 35 miles long wire. Gold is chemically inactive, that is to say not affected by oxygen, sulphur, or acids. It can be dissolved by aqua regia, which is a mixture of 1 part nitric and 3 parts hydrochloric acid.

Uses of Gold: Gold is greatly used for jewelry, coinage, decorative, scientific, and dental purposes. Pure gold is very soft. It is alloyed with other metals to give it different colour appearance & make possible for it to resist wear & tear.
Colors: Yellow gold is the most accepted for jewelry and is comparatively easy to work. White gold is typically used with diamonds, since its white color harmonizes with the stone. Comparatively white gold is difficult to work because of its hardness and brittle nature. Even red gold is often used with yellow for contrast effects. Green gold is used for antique jewelry.