| Gold

Gold
Colors
Gold
in its pure state only comes in one color--yellow. However,
it is possible to buy it in a variety of colors, including
pink and green. Some colors of gold, such as blue, black,
and purple are not easy to find, but they can be produced
by mixing other metals with the gold in prescribed proportions.
You are probably more familiar with white gold.
It is usually a mixture of gold, copper, nickel, and zinc.
Occasionally, palladium, platinum, manganese, or tin are used
to make it white. Even when these metals are added, white
gold may still have a yellowish cast, specially if it is 18K.
The yellowish cast is not apparent, when the jewelry piece
is finished use white gold is routinely plated with rhodium,
a metal that gives it a hard, bright, white.
The
next time you're in a jewelry store, ask to see some multicolored
gold and note the interesting designs and effects can be created
by using more than one color. Then you will understand why
multicolored gold is becoming increasingly popular.
As
you look, you may wonder how these different colors of gold
are made. If so, you can refer to the following chart on the
composition of different colored gold alloys. It's based on
an article entitled "A Jeweler's Guide to Gold in Technicolor"
by Tom Arnold in the December 1984 issue of The Goldsmith.
These are not the only possible formulas for these colors.
This
yellow color
The
thickness
percentage
of copper
If
you prefer to buy
Accidentally spotted
Apply
a drop of aqua
Determined
by calculating
Becoming increasingly popular
white
gold prongs
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