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Fine Jewelry University Articles matching: “Tension setting”
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Fine Jewelry University
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Gem in the Spotlight: Ruby
… diamonds weighing a total of 5 carats. In 2015, Sotheby’s put the ring up for auction where it sold for a record setting $30.42 million dollars to an anonymous Swiss buyer. Care and Cleaning of Ruby Rubies are sturdy stones, but are still …ultrasonic cleaning machine with rubies, but use caution as these machines can cause loose gems to come out of their settings. Remember to dry your ruby jewelry thoroughly before wearing or storing. Why Ruby? Rubies are a truly remarkable …
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Gem in the Spotlight: Emerald
… 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 jewelry ever sold at auction. The 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…
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Gem in the Spotlight: Opal
…. To keep opal at 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 …
