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Fine Jewelry University Articles matching: “Resizing ring time”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Pearl
… response to the irritant, the mollusk secretes a substance called nacre to coat the object and protect itself. Over time, layer upon layer of nacre is deposited around the irritant, eventually forming a pearl. This process can occur … pearl is virtually indistinguishable from a natural pearl in appearance, and can be created in a fraction of the time. Because of this, cultured pearls are far more common and affordable than natural pearls. Cultured pearls are …
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Gem in the Spotlight: Opal
… traditional birthstone for those lucky enough to born in October, and it is found in a huge variety of colors (sometimes all within the same stone). Gemology of Opal Opal’s captivating dance of colors is a result of its unique internal …body color. A gemologist with right 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 …
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The History of Diamond Cuts
… in one step. Since only diamond can cut diamond, the diamond cutter must take care to polish the gem at the same time. That is one of the reasons diamonds are expensive. Diamond cutters are highly trained and need a lot of experience to … tradition of the diamond engagement ring began. Mary of Burgundy became the first to receive a diamond engagement ring. Archduke Maximilian of Austria gave her a ring that was set with a point cut diamond and thin flat pieces of diamonds…
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How to Value Inherited Jewelry
…is selling) and the marketplace (global economy, commodity prices, local jewelry market, etc.). And, it changes with time and styles. Unfortunately, jewelry value is not as simple as the cash a piece could be sold for at any given time. …their offer can be significantly lower than even the intrinsic value of a piece. We have even heard of cases where a ring with a one carat diamond and $50 in scrap gold was valued at $50 by these operations. The intrinsic values for the …
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How to Tell If a Diamond Is Natural or Lab Grown
How can I know if my diamond is real? This is a question we get all the time, and it’s not as simple as you might think. First, you have to decide what “real” means. If you are not familiar … and GIA (the Gemological Institute of America) have developed even more complex and sophisticated machines for answering this question. They have imaginative names like DiamondCheck, DiamondSure, and DiamondView. Roughly speaking, these …
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Synthetic Gems: The Whole Story
… put ownership beyond most people to justify the price. Just a one carat gem could cost $3,000 and more. Most of the time people don’t wear them as an engagement ring where people can spend over $10,000 routinely. The answer was to find a… like the nature gems. The color and sparkle of these synthetics look like the best nature can produce. This is sometimes the first clue it is a synthetic. Synthetic gems make excellent jewelry because they have the same property as the …
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Gem in the Spotlight: Quartz
What is common and yet rare? What is well known but surprising? What is affordably priced sometimes and sometimes unattainably expensive? If you answered quartz to all these questions you would be right (but …. One famous one is “Alaska Diamond” for rock crystal alongside “Herkimer Diamonds” (see below). In recent times, the term “Green Amethyst,” which was commonly used for Prasiolite, has come under fire. It even attracted the attention of …special to people. Microcrystalline means that the stone is made up of smaller crystals and not one big crystal. Sometimes you can see this structure with your naked eye as with Drusy Quartz, or you may need the aid of 10-50x …
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Gem in the Spotlight: Iolite
… different colors when observed at different angles, especially with polarized light. Pleochroism is caused by differing absorption of light rays in doubly refractive crystals. Thus, no singly refractive gemstone can exhibit pleochroism. … than Emerald or Topaz. Because of this, some extra care should be taken with your iolite jewelry. Try to avoid wearing it in situations where it might be hit against hard objects to keep it free from cracks and small chips. Iolite is a …
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Gem in the Spotlight: Tanzanite
… are two wonderful traits in a gemstone. Tanzanite has them both. In fact, it is estimated that Tanzanite is 1,000 times rarer than diamond. But, what makes Tanzanite so popular is its color. Tanzanite’s gorgeous color is a captivating …this gem as blue zoisite. The vast majority (current estimates are around 95%) of tanzanite is heat treated to help bring out the vibrant blues. The stones that haven’t been heated by humans were heated through natural effects while they …
