Sterling Silver Guide - New Platinum/Silver Alloy

Sterling Silver..

Silver is a soft metal in its pure form, too soft to be used for jewelry and other items, so it's mixed with other metals to make it more durable. A popular silver mixture, called an alloy, is known as sterling silver. The Federal Trade Commission, has set forth that jewelry sold in the US cannot be marked or described as silver, solid silver, sterling silver, sterling, or using the abbreviation Ster. unless it contains at least 92.5 percent pure silver.

Silver content can also be stated as 925 parts per thousand of pure silver, so you might see the figures 925 or 92.5 used to mark silver content. Silver from Mexico is rarely 92.5 and therefore you may have noticed when you've purchased a sterling silver bracelet in Mexico, the bracelet will loose its luster and tarnish quickly.

The care of sterling silver jewelry is somewhat easy. You can keep sterling silver jewelry in a tarnish prevention bag. If you wish to clean your sterling silver jewelry use a phosphate free detergent. If you're ready to pull out a toothbrush and clean your sterling silver with toothpaste, think again. The simple action of brushing silver and using an abrasive (such as toothpaste) will scratch sterling silver.

Over time, sterling silver will present with a patina, which many wearers of silver seek to achieve however, if the patina finish is not what you desire, you can easily clean the patina away with silver cleaner. The patina finish (which will come naturally over time) can enhance the appearance of gemstones set in silver.

Sterling and Platinum..

May seem like a unique combination and it is! In 2003, silver and platinum were mixed and this new alloy will be used to set fine gems into sterling/platinum alloy jewelry. The nice part about this new alloy is that it does NOT tarnish.

Buying Sterling Silver Jewelry..

Buying jewelry set in sterling silver can be affordable. On one hand you have the look of white gold or platinum (without the high precious metal prices) and on the other hand you can find pieces set with high end quality gems at a fraction of the cost. This new trend for 2007 is both exciting for consumer's and the jewelry industry.

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  • Sunday, June 03, 2007 3:01 PM Douglas Wiltshire wrote:
    I have worked professionally in the Jewelry business for over 20 years as a designer/ platiniumsmith. This is the first I have ever heard of mixing silver with platinum as an alloy. I know that Tiffanys patented a tarnish free silver that is available now (and I have used in castings over 50 times)for the industry. But never would I have imagined you could blend platinum with silver. For one platinum and silver are not homogeneous and their melting temperatures are vastly different. secondly, platinum would have to contain a min. 5% sub-platinum alloy (cobalt) or 10% iridium/ ruthenium . In contrast the differences in melting temps. would be dramatic to say the least. 1795 c 10%irr/plat vs. 1761 f silver. I am thinking the author of this article must be referring to sterling silver that is rhodium plated which is a completely different process altogether and in no way could be considered "mixed" it is a topical application and would only be temporary at best. The patented tarnish free silver has proprietary secrets that are not revealed for reasons of unauthorized reproduction of that material.
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  • Sunday, June 03, 2007 7:58 PM Douglas Wiltshire wrote:
    I must retract my last submission. I was incorrect in my assumption that there was a silver alloyed with platinum. I have found through research that there are a few variations of this new alloy. I will have to see if this is the same that I have cast with in the past that resists tarnishing and has a higher vickers hardness.
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