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Real Gold
Since ancient times, gold has been used to create the finest objects of
art, religious articles and fine jewelry. Because gold can be mixed with
other metals to create different colors and karats, it is one of the
most popular metals for jewelry today in the United States and Europe.
Gold, as a precious metal, has been valued and held in high esteem since
ancient times and is still one of the most highly prized metals that
has, throughout the ages, been used to symbolize wealth and power.

What is 24K, 18K, 14K, 10K, 585?
24 karat gold is pure gold. The term "karat" refers to the percentage of
gold, versus the percentage of other metals, in an alloy (an alloy is a
substance made of two or more metals).

Too Soft in its Purest Form
Since gold is too soft to be usable in its purest form, it is usually
combined with other metals. The most common marks for gold jewelry are
18K or 750 (signifying 75% gold), 14K or 585 (58% gold), and 10K (42%
gold).

Gold Karatage or Purity is Regulated by U.S. Law
To regulate the use of gold, the United States passed the National Gold
and Silver Stamping Act, which states that if an item is marked with its
quality, that mark should be accurate and within the tolerances provided
by the Act. Ten karat gold is the lowest level allowed under U.S. law.

How Karatge Affects Gold Colors?
Jewelry made of higher-karat gold is more yellow in color and slightly
softer than gold jewelry made of lower-karat gold, which may include
copper, silver, zinc, or other metals. The consumer needs to be
concerned with the alloys if you are allergic to certain metals or have
a high acid content in your body. Acid can turn the jewelry that you
wear on your body to black and appear to be of poor quality when it
actually is not. Pure gold (which is always yellow) is too soft for
jewelry use. The metals that are mixed with pure gold for strength can
also modify the color of gold resulting in different shades of yellow,
white, and pink gold. White gold was originally developed to imitate
platinum, and is usually an alloy containing 25% nickel and zinc. If
stamped 18 karat, it would be 75% pure gold. Here is the table that
shows the purity of gold by karat:
|
Karatage |
Percentage of Fine Gold |
Karatage |
Percentage of Fine Gold |
Karatage |
Percentage of Fine Gold |
|
24 |
100 |
14 |
58.5 |
9 |
37.8 |
|
22 |
91.75 |
12 |
50.25 |
8 |
33.75 |
|
18 |
75 |
10 |
42 |
|
|

Colors of Gold
There is no such thing as naturally occurring rose, white, or green
gold. Gold itself is only one color: yellow.
White gold and yellow gold are the most common types of gold colors used
in jewelry making. But did you know that, various other colors of gold
are also available and some of these colors may surprise you. Gold is
available in several different colors. The most popular is yellow gold,
followed by white gold and rose gold, though other gold colors are
sometimes also available such as bronze, red and lime gold. All of these
other "colors" of gold are produced by mixing pure 24K yellow gold with
various other metals. The percentage of the other metals (copper,
silver, zinc, nickel) produces the different shades of gold. Any karat
other than 24K gold (pure gold) is called an "alloy". For instance, 14K
gold is an alloy consisting of fourteen parts pure gold and ten parts
other metals.

White Gold
White gold was originally developed to imitate platinum, and is usually
an alloy containing 25% nickel and zinc. If stamped 18 karat, it would
be 75% pure gold. White gold is an alloy of gold and at least one
white metal, usually nickel or palladium. Like yellow gold, the purity
of white gold is given in carats (karats). Eighteen-carat white gold
consists of 75% gold mixed with 25% white metals. New white gold rings
are usually coated with a hard protective finish of rhodium, a
silver-white metal like platinum. To keep a white gold ring looking its
best, Gillett's recommends an annual replating of rhodium, since the
coating wears off over time. White gold has become very fashionable in
recent years as many consumers have opted for the cool, contemporary
white look over the classic yellow look. White gold has the same
properties as yellow gold, but is mixed with different alloys to give it
its white color. Generally, white gold is created by using a nickel or
palladium alloy, zinc and copper. Sometimes, white gold is plated with
an even whiter metal, such as rhodium (a rare member of the platinum
family) to enhance its appearance. A white gold setting can enhance the
look of white diamonds and put a modern twist on a traditional standard.

Red Gold and Rose Gold
Rose gold is a gold and copper alloy widely used for specialized jewelry
due to its reddish color. It is also known as pink gold and red gold.
Because it was popular in Russia at the beginning of the nineteenth
century it is also known as Russian gold, although this term has become
somewhat rare. Since it is an alloy, there is no such thing as "pure
rose gold"; pure gold is yellow and pure copper is reddish. Although the
names are often used interchangeably, the difference between red, rose,
and pink gold is the copper content. Rose gold, also known as pink gold
or red gold, is a mixture of pure yellow gold with a high percentage of
copper. It has a very subtle and delicate color that may intensify
somewhat with age due to a slight, but attractive, tarnishing of the
copper.

Why Gold is Used in Jewelry?
Because of the softness of pure (24k) gold, it is usually alloyed with
base metals for use in jewelry, altering its hardness and ductility,
melting point, color and other properties. Alloys with lower caratage,
typically 22k, 18k, 14k or 10k, contain higher percentages of copper, or
other base metals or silver or palladium in the alloy. Copper is the
most commonly used base metal, yielding a redder color. Eighteen carat
gold containing 25% copper is found in antique and Russian jewelry and
has a distinct, though not dominant, copper cast, creating rose gold.
Fourteen carat gold-copper alloy is nearly identical in color to certain
bronze alloys, and both may be used to produce police and other badges.
Blue gold can be made by alloying with iron and purple gold can be made
by alloying with aluminum, although rarely done except in specialized
jewelry. Blue gold is more brittle and therefore more difficult to work
with when making jewelry. Fourteen and eighteen carat gold alloys with
silver alone appear greenish-yellow and are referred to as green gold.
White gold alloys can be made with palladium or nickel. White 18 carat
gold containing 17.3% nickel, 5.5% zinc and 2.2% copper is silver in
appearance. Nickel is toxic, however, and its release from nickel white
gold is controlled by legislation in Europe. Alternative white gold
alloys are available based on palladium, silver and other white metals
(World Gold Council), but the palladium alloys are more expensive than
those using nickel. High-carat white gold alloys are far more resistant
to corrosion than are either pure silver or sterling silver. The
Japanese craft of Mokume-gane exploits the color contrasts between
laminated colored gold alloys to produce decorative wood-grain effects.

Other Uses of Gold:
Because gold is a very good conductor of electricity and heat, it is
widely used for industrial purposes and manufacturing applications. Gold
was once used extensively as dentures and dental fillings because of
it's soft demeanor and it's easiness to shape. Although it is still used
in some dental applications, it is not used for dentistry purposes as
extensively today. Other usages gold include biological and medical
research, photographic imaging, and because it is has a high resistance
to corrosion, it is used in sensitive instruments and other mechanical
devices.

History of Gold
Gold has been known and highly-valued since prehistoric times. It may
have been the first metal used by humans and was valued for
ornamentation and rituals. Egyptian hieroglyphs from as early as 2600 BC
describe gold, which king Tushratta of the Mitanni claimed was "more
plentiful than dirt" in Egypt. Egypt and especially Nubia had the
resources to make them major gold-producing areas for much of history.
The earliest known map is known as the Turin papyrus and shows the plan
of a gold mine in Nubia together with indications of the local geology.
In ancient Egypt, around the time of Seti I (1320 B.C.), we find the
creation of the first gold treasure map now known to us. The primitive
working methods are described by Strabo and included fire-setting. Large
mines also occurred across the Red Sea in what is now Saudi Arabia.

Gold was first discovered as shining, yellow nuggets. "Gold is where you
find it," so the saying goes, and gold was first discovered in its
natural state, in streams all over the world. No doubt it was the first
metal known to early hominids.

Early civilizations equated gold with gods and rulers, and gold was
sought in their name and dedicated to their glorification. Humans almost
intuitively place a high value on gold, equating it with power, beauty,
and the cultural elite. And since gold is widely distributed all over
the globe, we find this same thinking about gold throughout ancient and
modern civilizations everywhere.

Buying Rings from Jewelry Stores
Online
Many people worry about buying
rings on the internet for a reason as simple as not being
able to know their correct ring size and therefore, not get
the correct ring size among others of course. We need to
remember one important thing about buying jewelry online.
Online jewelry business has only increased during the last
few years, not reduced because consumers have become more
confident of being able to get better values online with a
larger variety of designs to choose......
Read more...

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