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Fine Jewelry University Articles matching: “citrine pendant”
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Fine Jewelry University
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Gem in the Spotlight: Tourmaline
… of Maine and California and praised the quality of the stones they produced. Along with opal, tourmaline is October’s birthstone. Care and Cleaning of Tourmaline Tourmaline makes a great gem in a ring for occasional wear or a pendant/earrings for daily wear. Because it isn’t exceptionally hard (Mohs hardness of 7-7.5), it should be stored away from other gemstones that could potentially damage it. Tourmaline should not be put into an ultrasonic cleaner or steam cleaned, …
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Gem in the Spotlight: Tanzanite
… harmed under normal conditions the low hardness and poor to fair toughness (and a property called cleavage, which is a tendency to break when struck) means that care should be taken to avoid sharp impacts. Setting it in earrings or a pendant will help protect it if the intended use is daily wear. Rings and bracelets set with tanzanite should only be worn carefully on occasion. We recommend cleaning with warm soapy water and a soft bristle brush. You should never clean …
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Gem in the Spotlight: Emerald
… to infiltrate the structure in a hexagonal pattern, characteristic of emerald’s crystal structure. Hollywood celebrities have had a fondness for emeralds for many years. Elizabeth Taylor received a 23.46 carat emerald and diamond pendant/brooch from her future husband Richard Burton during the shooting of Cleopatra . She wore the emerald on her wedding day and it was later sold at Christies in 2011 for $6.6 million, setting the record for the most expensive emerald …
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Gem in the Spotlight: Opal
…its luminous best, wiping it clean with a soft cloth is recommended. Avoid the use of home ultrasonic machines or abrasive jewelry cleaners that could potentially damage the stone’s surface. For more valuable stones, setting them in a pendant or earrings instead of a ring will help them last as long as possible. With proper care opals can last for generations. Opals have very high water content, typically hovering around the 5-10% mark. As opals dry out over time they can …
