Engagement Rings And Wedding Bands
♫ Friday, October 7th, 2011
Platinum engagement rings, and platinum diamond rings, have taken the market by storm due to the fact that the sheen or patina of the metal does a better job than gold of highlighting/contrasting the beauty of the set diamonds. The platinum metal is part of a group of six metals including; platinum, iridium, ruthenium, rhodium, palladium, and osmium. These metals are all extremely similar to platinum in their chemistry, density, and weight. As a matter of fact, they are often difficult to distinguish from each other. Platinum jewelry is also unique in that it is the only metal that is of 90% to 95% purity.
Gold in its purest form is an extremely soft and pliable metal. Because it is so soft and malleable it cannot be used in jewelry since it would disfigure with normal wear. Because of this problem jewelers resort to an alloyed gold known as karat gold (different from “carat” measurement used to characterize diamond weight) Adding alloys to the gold will make the metal tougher and harder so that it may be used in jewelry applications. It will also result in different colors depending on the different combinations used. White gold contains approximately 10-20% nickel, with combinations of platinum, zinc, copper, and palladium. This combination makes white gold a tougher metal than yellow gold. The amount of gold in any given combination is described by karat number.
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