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Explanation
of Gold
Weight:
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Gold
is weighed in troy ounces.
There
is a world price of gold that is set each day in
London
for each oz.
One
price is set in the morning; a second price is set in
the afternoon.
It
is called the London Gold Fix.
Gold is also weighed in a measurement
called pennyweights (abbreviation
is dwt.)
There
are 20 dwts per troy ounce.
Or
Gold
can be weighed in grams…there are 31 grams in a troy
oz.
1
dwt= 1.55 grms
1 dwt= 1/20th oz
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Gold
Karat Explanation:
Pure gold is 24kt.
Since this is typically too soft to make jewelry
that is strong enough to wear, the pure gold is mixed
with other metals to create a stronger metal.
The variations of the metals used are…copper,
brass, or nickel. The
amount of the metal used will give the gold a variation
to it’s color.
The
% of gold in a piece of jewelry is relative to 24kt
(pure gold)
14kt
means 14
parts pure gold and 10 parts of alloy =24
18kt
means 18
parts pure gold and 6 parts of alloy = 24
In the
US
a piece of jewelry that is gold must be marked as gold
with a plate or a stamp.
It can read 10k, 10kt, 14k, 14kt, 18k, 18kt.
In
Europe
they are not mandated to use a stamping but typically
they will use 750 for 18kt gold
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