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Fine Jewelry University Articles matching: “3 round stones with baguetts”
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Fine Jewelry University (Show All FJU Articles)
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Anatomy of a Ring
… prongs checked by a jeweler, especially if it looks to you like any of the tips are missing or worn down, or if any stones are loose. The more tips that are thin or missing, the more likely you are to lose a stone. In addition to prong …rings have been very popular for sometime and so you may be familiar with this one already. The “halo” refers to the stones that surround the center stone, or sometimes center cluster. There are many styles of halo rings. A halo can be a …
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Gem in the Spotlight: Opal
… color, and a wide range of colors. Red carries more value and is by far the rarest color that opals can display. Stones with larger patches of color are valued higher than those that display only small pins (pinfire) or no play of color at…”. Opal has a refractive index of 1.37 – 1.47 and a Mohs hardness of 5.5-6. This makes it one of the softest gemstones commonly used in jewelry. For reference, here are the Mohs hardness values for some other gemstones you may know: Diamond…
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The Magic of Polarized Light
… Polarizing filters are critical to many fields of study. Without them, we wouldn’t be able to easily identify gemstones, TVs and monitors wouldn’t work in the same way, and the latest blockbuster movie wouldn’t pop off the screen the way … them to function efficiently as they do without negative side effects. Using Polarized Light in Gemology Some gemstones, due to their unique chemical structure, actually polarize light themselves. These gems are doubly refractive (DR) and …
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The History of Diamond Cuts
…recorded statements about diamonds is: “the substance that possesses the greatest value, not only among the precious stones, but of all human possessions.” said by Pliny, the Roman historian. The story of the diamond cut is the story of … old diamond cuts they think of the Old Mine cut diamond. The Old Mine cut has the same number of facets as a modern round brilliant (a total of 58). The Old Mine cut’s distinctive features are the high crown angle, small table, large …
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Gem in the Spotlight: Amethyst
… 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 …when storing your amethyst jewelry. If you have an amethyst ring or other piece of jewelry with diamonds or other gemstones, you should be careful when cleaning it. You should use a soft brush to gently scrub the amethyst and avoid using …
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Learn Secret Diamond Buying Skills From a Professional Diamond Buyer
… secrets to diamond grading allow for fast, accurate assessments that are easy to learn. Let’s start with low grade stones. If you can see any inclusion with a non magnified look at the stone, the diamond is a lower grade. You don’t have to… is have your own color grading master stone. If you own a diamond bring it with you as you shop. Compare all the stones you are looking at to your diamond. Note: keep your diamond very clean to judge accurately. It does not matter if your …
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Jewelry Repair FAQ
…, pearls, and more in all shapes and sizes to choose from when selecting a replacement stone for repairs. Matching stones takes a discerning eye, attention to detail, extensive gemological training, and years of experience. Of course, some …to again. What is retipping, and why do I need it? In a large number of jewelry pieces, the valuable diamonds and gemstones are held in place with prongs. With wear, the tops of these prongs can become worn down. If the prongs wear down too…
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Art Deco vs. Art Nouveau Style Jewelry
… it impacted almost every artistic medium. Jewelry makers embraced materials such as enamel, horn, and semi-precious stones to create pieces that were not just adornments but works of art. Many Art Nouveau jewelry pieces were made in silver… quite common as well. The diamonds used in Art Nouveau jewelry were typically Old Mine cuts, but Old European cut stones were also included as they became more popular. In contrast, Art Deco arrived in the 1920’s and 1930’s, characterized …
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Gem in the Spotlight: Tanzanite
… 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 were still underground. Without … isn’t heated and is still pretty enough for jewelry displays trichroism. Trichroism is an effect that causes gemstones to display different colors when viewed at different angles. Tanzanite in its raw form has three colors: blue, purple, …
