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Fine Jewelry University Articles matching: “Platinum Sterling”
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Fine Jewelry University
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Gem in the Spotlight: Emerald
… Chalk Emerald is a famous 37.8 carat emerald known for its clarity and rich green color. It was donated to the Smithsonian by Mr. and Mrs. O. Roy Chalk in 1972 and can be seen on display at the National Museum of Natural History in a platinum and gold ring surrounded by 60 pear-shaped diamonds. According to workers at the Muzo mine in Columbia, it is one of the finest green emeralds ever discovered Care and Cleaning of Emerald Like all precious gemstones, emeralds require …
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Types of Jewelry Clasps
… box clasps, a fold over is only as strong as the tension in the metal that holds it in place. Over time the clasp can loosen and need to be adjusted. Also, like box clasps, this loosening happens much faster with softer metals like sterling silver. Adjustability – The bracelet needs to match your wrist size closely. Sometimes a second bar can be added to allow for small adjustments in length, but many styles don’t include this adjustment. Serviceability – Because of the …
