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THE METAL OF THE SUN - GOLD
Without gold, it
is said, there would be no jewelry. For thousands of years, men have
fought, sailed oceans, braved jungles and moved mountains for gold.
Every great civilization has left a legacy of gold jewelry that
unfailingly dazzles the modern eye.
Too soft for tools
or weapons, gold was thought to be the metal of the sun, coveted for
its natural beauty and worshiped for its mystical powers. Today, gold
is cherished not just as a rare precious metal. Its physical
properties are unrivaled for creating fine jewelry.
Stretch an ounce
of gold into 50 miles of fine wire. Hammer an ounce into a square, 100
feet wide. It resists tarnish and rust. It is immune to corrosion,
oxidation and acids. Gold's value comes from both its beauty and
scarcity. All of the gold mined in the past 6,000 years would fit into
a cube 60 feet tall.
Karats are a
measure of the percentage of gold to alloy contained in gold jewelry.
Gold is mixed with alloy for strength. Metal stamped 24K, meaning
24-karat gold, is considered pure gold and too soft be used for
jewelry. More common 18K gold contains 75% pure gold. Jewelry marked
14K appears the most widely. Anything under 10K cannot be labeled or
sold as gold.
Yellow gold,
capturing the metal's classic natural color, is by far the favorite.
Copper and silver are the alloys used most with yellow gold. For the
fashion-conscious, white gold is hot and trendy. Copper, zinc and
palladium, or nickel alone alloy with white gold.
The value of gold
jewelry is based on several factors: fineness or karat count, weight
in grams and the workmanship reflected in the piece.
THE ROYAL METAL
From ancient Egypt
to pre-Columbian South America, platinum plays a leading role in the
creation of exquisitely fine jewelry. Not until the 18th century did
it begin to appear in the jewelry of
Western Europe.
It soon became the metal of royalty.
Platinum ranks
among the rarest of metals. Ten tons of ore yield one ounce of
platinum. For every 15 to 20 ounces of gold extracted, only a single
ounce of palladium is mined. Mountains of rock must be crushed to meet
world demand and the refining process takes nearly a half-year.
Unlike gold, which
doesn't work well in its purest form, platinum is used in jewelry at
90-95% purity. Platinum of this fineness is stamped 900Pt, 950 Plat or
just Plat. Even in this pure state, platinum contains five other
metals -- iridium, osmium, palladium, rhodium and ruthenium. Like
gold, it is tarnish and rust resistant.
GENERATIONS OF CARE
Many of us
treasure the gold and platinum jewelry pieces that have become family
heirlooms. Proper care protected the jewelry as it passed from
generation to generation.
When you purchase
gold or platinum jewelry from ICE, we hope you will follow a few
simple rules for its care and safekeeping.
Avoid harsh
chemicals or abrasives. Don't wear rings, bracelets and other jewelry
while working with power tools. Store each piece separately in a soft
cloth pouch or in the separate compartments of a jewelry case. Check
that gem settings are secure. If not, ask a professional jeweler to
re-set them. |