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Fine Jewelry University Articles matching: “setting only”
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Fine Jewelry University (Show All FJU Articles)
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Jewelry Repair FAQ
… bothers you, you can stop by more often to have it replated. Some jewelry with very fragile stones or light weight setting styles may need more frequent visits depending on how often you wear it. Some jewelry may need very little … are the key to understanding gold plating. The amount of gold used is on the molecular level. This means that only a very thin layer of gold covers the surface. Gold plating produces a layer of gold around 0.5 microns thick. A micron is …
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Gem in the Spotlight: Opal
… 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 … 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 all. Opals that don’t display any play of color are called “common opal…
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Anatomy of a Ring
…? As a final point on heads it is important to note that not all rings have a head. Some designs incorporate the setting of the gemstone directly into the rest of the ring without using a separate part. These designs can use a combination of…, a channel head sets the stone in between two straight pieces of metal on either side of it (this style is most commonly seen with square or princess cut diamonds). As you may have guessed, all styles of head can wear thin over time and …
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What Are Lab Grown Diamonds?
…, a very thin layer of synthetic diamond material is added on top of a CZ. The nanocrystalline diamond particles are only about 30 to 50 nanometer’s thick. That is about 30 to 50 atoms thick or 0.00003mm. Or, should it be said, extremely …. CVD diamond coated Cubic Zirconia are not synthetic diamonds. They are glorified Cubic Zirconia diamond simulants only. They do not have the same hardness or crystal structure of diamonds. Like some eye glasses, CVD diamond coated Cubic…
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The History of Diamond Cuts
One of the earliest 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 … of a gem while polishing is making the facets smooth and shiny. Diamonds are cut and polished 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 … thin flat pieces of diamonds in the shape of an “M” in 1477. The Earliest Diamond Cuts Once it was understood that only diamond can cut diamond the process of changing the shape of a diamond began. In the 15th century cutters would saw …
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How Are Lab Grown Diamonds Made?
… the alchemists of old who sought to turn lead into gold, many have tried to achieve this impressive feat. We have only recently been able to produce gem quality, lab grown diamonds that are large enough to be used in jewelry. But, how is… with all of these advantages, the largest known, polished lab grown CVD diamond as of the time of this writing is only 3.23 carats; it was graded as I color and VS2 clarity. Intense research is ongoing around the world into the field of …
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How to Value Inherited Jewelry
… it was put out to market, the condition of the item, the photo in the ad, and a million more factors the seller may only find a buyer willing to pay $800. This does not change the jewelry value. It simply means that the current owner …Replacement Value The most popular jewelry appraisal is an insurance appraisal for replacement purpose. Many people only know of this one type of appraisal. It produces the highest price for jewelry value. It is a theoretical value based …
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Types of Necklace Chains
… to kink. Serviceability – They are probably the easiest chain style to maintain and repair. Keep in mind that this only applies to solid link cable chains. Hollow cable chains, like any hollow jewelry, are difficult to work on. CONS … have a big chain look without a big chain price. This is a very nice feature to have when gold prices are high. The only downside is that this style isn’t quite as strong as a traditional cable chain of the same size would be. PROS Cost…
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Gem in the Spotlight: Blue Zircon
… creates a somewhat brittle tendency that can lead to chips, especially along facet edges requiring extra care when setting, cleaning, or wearing. The Mythology and History of Zircon Since it has been known from antiquity, Zircon has a rich …fiery nature. Unfortunately, the name never caught on, and today we use the simpler term, Blue Zircon. Zircon is commonly heat treated. Brown zircons can be transformed into colorless or blue zircons through heat treatments. Zircon is a …
