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Platinum
is a bright, silver-white color precious metal.
Platinum is considered to be the most secure
metal for gem settings because of its resistance to
damage from corrosion, heat and chemical attack.
Platinum
is the purest precious metal with an alloy of 90 percent
or higher. Look for a stamp of 950 Plat or 900Pt on
platinum respectively indicating 95 or 90 percent
purity. Rhodium, part of the platinum family, is a metal
often used to plate silver, white gold and platinum to
produce a brighter, harder finish.
Like white gold, it
makes very white diamonds appear bright.
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