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Fine Jewelry University Articles matching: “offset princess cut”
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Fine Jewelry University
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Gem in the Spotlight: Tanzanite
… value of tanzanite are its hue and how deep the color is. Less important, but still part of the equation, are the cut and clarity. As with all colored gems, the value of tanzanite comes from its color. Tanzanite has a Moh’s hardness of … inspired by the second-highest peak of Mount Kilimanjaro. The Mawenzi Tanzanite is expected to stay in Tanzania for cutting and polishing, with the best pieces eventually showcased at the Tanzania National Museum. The Queen of …
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Gem in the Spotlight: Amethyst
…colored amethysts are now appearing in inexpensive jewelry. Because the cost of testing is higher than the cost of even the natural stones it is not often performed. Beware of stones of perfect clarity, calibrated sizes, and precision cutting. Notable Stones One of the most famous amethyst stones is in The Morris Amethyst Brooch which is set with a large 96 carat heart shaped amethyst. It resides in the collection of the Smithsonian Institution, National Museum of …
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Caring for and Cleaning Your Jewelry
… spot can chip or break the stone. This does not mean that diamonds are not very durable. They are the most durable of all gems. In fact diamonds have been through a lot of stress before they reach you. The mining process and cutting tests the stone long before it reaches you. With conscious care, the diamond can last for generations just as beautiful as the day you got it. Diamonds can withstand most chemicals, unfortunately the metal jewelry cannot and will be …
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Gem in the Spotlight: Opal
… a good time to discuss doublet and triplet opals. These gems are manufactured using a thin slice of natural opal. In doublets, a lapidarist will use a piece of ironstone or black onyx and glue the fragile piece of opal to it before cutting and leaving them glued together after the fact to be set into jewelry. In triplets, that thin piece of opal is sandwiched between a piece of onyx and a clear piece of laboratory grown quartz (the same material that is commonly used …
