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Fine Jewelry University Articles matching: “Value of black pearls natural”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Opal
… training and equipment will be able to detect this treatment. Opals can also sometimes be dyed, giving them an unnatural but fascinating body color such as a vibrant green or pink. Some opals that have cracked can sometimes be reused by …. This is also 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 …
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Gem in the Spotlight: Quartz
… and sometimes unattainably expensive? If you answered quartz to all these questions you would be right (but naturally you looked at the title and knew). Quartz is one of the most common minerals on earth. Many quartz varieties are cut into … is the “Berns Quartz,” named after the donors that donated it to the Smithsonian’s National Museum of Natural History. It is an 8,000 pound (yes you read that correctly) slab of natural clear quartz and is one of the largest clusters ever …
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Gem in the Spotlight: Emerald
… is a treatment to the stone that makes the fractures less visible. There are many ways to do this with oiling, natural resin, synthetic resin, silicone, and epoxy being the most. The basic technique involves submerging the stone in the …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 …
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Gem in the Spotlight: Alexandrite
… of 8.5. Because of its high hardness, alexandrite is suitable for everyday wear. That being said, because of natural alexandrite’s tremendous value and rarity, it is recommended to be worn carefully or put in jewelry such as earrings or …is so famous, in fact, that color-change itself is often called “The Alexandrite Effect.” Stunning color change on a natural alexandrite. Alexandrite History and Lore Alexandrite was first found in the Ural Mountains in Russia in the 1830s. …
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Gem in the Spotlight: Ruby
… rubellite tourmaline (the red variety of tourmaline) gets its name. Pliny the Elder mentioned rubies in his work Natural History, including notes on their durability, which means that their physical properties have been known well for over … the imagination of people for centuries. Whether you are a gem collector, a jewelry lover, or simply appreciate the natural beauty of the world, rubies are definitely a gemstone worth owning. If you are looking for a fantastic new piece of …
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Jewelry Repair FAQ
… done the same way as gold plating, and it produces a bright white finish on the jewelry. Some alloys of white gold naturally have a yellow tint to them, so they require regular rhodium plating to keep looking white. How often should I bring… pure gold with other metals to create different alloys that have different colors and properties. Because silver is naturally a white metal, many people believe it is mixed with pure gold to create white gold. In truth, even a high …
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Diamond Buying Guide: The 4 C’s
…gold, it may appear to be much more yellow than it is. Fancy color diamonds are a fun, non-traditional option. While natural fancies can be very rare and extremely expensive, we now have the technology to permanently color a white diamond to…imagine. You can read more about fancy diamond colors here. Clarity Most diamonds contain inclusions. Inclusions are natural birthmarks and useful as identifying characteristics. Clarity grading is done with 10 power magnification. The …
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Types of Necklace Chains
…links fail, the chain can still hold together. Flexibility – Rope chains are very flexible and easy to wear. They’re naturally twisted, so you typically don’t have to worry about straightening them out. Classic Look – The rope chain is one …PROS Traditional Style – The baht chain is instantly recognizable, and it carries with it a rich cultural heritage. Value – As mentioned above, the baht chain is a great way to concentrate wealth in a small, easily portable vehicle. CONS …
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The Difference Between White Gold and Platinum
… color is achieved by a careful choice of the alloying metals, which bleach the yellow of pure gold. Platinum is a naturally white metal. It does not need to be alloyed for color. Jewelry platinum is typically an alloy containing 90% to 95% …The first difference between white gold and platinum is the most basic and is the foundation of all the other differences. White gold and platinum are different metals. White gold starts out as gold. Gold is … gold and platinum have their own properties that make them unique. How is white gold made? White gold is an alloy of gold and some white metals such as silver, nickel or palladium. The white color is achieved by a careful choice of the…
