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Precious Metals

Precious Metals


Gold, whether white, yellow or rose, is alloyed, meaning a percentage of the metal is not gold. Pure gold (100%) is 24-karat but is too soft for normal or everyday wear. 24-karat would bend and wear away quickly, so it is alloyed to give it more strength and durability. 10-karat is ten parts gold mixed with alloys such as copper, zinc, or nickel, depending on whether the manufactures want white, yellow or rose gold.
  • 10-karat gold is 41% pure gold
  • 14-karat is 58.5% pure gold
  • 18-karat is 75.0% pure gold


Platinum is 90% to 95% pure white metals. Platinum is a dense white metal, but it is soft and scratches easily. Platinum is also the only hypoallergenic precious metal. It is inert to almost everything like acids or strong chemicals, so it lasts far longer than gold when exposed to these agents. It is a perfect choice for anyone working with chemicals, such as a doctor, nurse, or a chemist, for example.


Sterling Silver is a white metal containing 95% pure silver. It is rarely used in fine jewelry, but is used extensively in less expensive jewelry items. It is soft and tarnishes quickly, making it less suitable for jewelry holding gemstones. Often it is plated to reduce black heavy tarnish. It was used for decades in flatware and hollow wear, but has lost favor with the work required to keep it tarnish free.