Wednesday, August 15, 2007

18k Gold Jewelry

Originating from the Old-English term “geolo,” meaning yellow, gold has become one of the Earth’s most precious metals. It is located in seas, rivers, the Earth’s crust; and even animals and plants! In ancient times, gold was used to create religious items for religious services. Later, various gold coins were produced. Today, South Africa is the biggest gold producer. To obtain one ounce of gold, about three tons of ore are required! As a result, gold’s rarity and sought-after features have made fine gold jewellery, such as 18k gold jewellery, the most popular metal in today’s jewellery. Gold is a deep-yellow element that is one of the metals on Earth. However, for practical purposes, pure gold is simply too soft to be used as jewellery. Thus, gold is typically mixed with one or more other metals, such as copper to produce an alloy. This balances the value of the 18k gold jewellery’s (jewelry) look, resistance to stains, and durability.

However, what is the “k” in 18k gold jewellery (jewelry) ? The traditional way of indicating gold’s purity, is by the carat unit (k or ct.) also known as hallmarking. Thus, 24k represents almost (99.99%) pure gold, 9k indicates 37.5 % gold content. Fine jewellery (jewelry) usually made from into 18k gold jewellery is 75%, or ¾ gold. Recently, the purity of gold alloys has been indicated millesimally, or in parts for each thousand. Thus, 18k gold jewellery is equivalent to 750 parts per thousand. In many respects, 18k gold jewellery is the finest on the market. Because 9k , 10k and 14k gold contain more base metal than gold, they stain easily. Consequently, your clothing and skin could become stained as well. These gold alloys are also significantly harder and subsequently more brittle than 18k gold jewellery. While 24k gold offers buyers a fantastic colour, it can be too soft for most jewellery and tends to scratch and mark very easily.

Aside from its purity, colour is another feature of gold and 18k gold jewellery. When we think of gold jewellery, an image of yellow coloured jewellery comes to mind . However, when particular metals are added with gold to form 18k gold jewellery, and array of colours, such as yellow, blue, pink, purple green, and red can be created. The most common that is used in jewellery white gold, which is an alloy that consist of nickel, zinc or palladium Besides its variety of possible colours, 18k gold jewellery (jewelry) has several other features:
It is so flexible that after hammering it enough, it almost becomes clear! Gold never stains, rusts, or erodes. In fact, gold jewellery discovered in ancient tombs in Egypt, were in perfect condition! Gold, such as 18k gold jewellery, conducts heat and electricity Gold is one of the softest metals on Earth. According to the Mohs scale of hardness, its value is 2-2.5. On the other hand, diamonds’ value is a perfect 10! Gold’s melting point is 1063 degrees Celsius, which is nearly 2000 degree Fahrenheit!
When various chemicals make contact with 18k gold jewellery, the results can be cracking, fragility, fading of colour, and breaking. To clean your 18k gold jewellery (jewelry) , only use a jewellery cleaner and avoid harsh household cleaners. When shopping for jewellery, consider 18k gold jewellery (jewelry) . Attractive, sturdy, and blemish-resistant, it offers the best features of the gold metal and this can be an investment for the future.

No comments: