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Fine Jewelry University Articles matching: “Cross over”
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Fine Jewelry University (Show All FJU Articles)
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Types of Jewelry Clasps
… – Barrel clasps require two hands to fasten, and it can be hard to line up the threads correctly. If the clasp is cross-threaded, that longevity we talked about before goes out the window. Compatibility – Using a barrel clasp requires the…display precious pieces. The history of jewelry clasps dates back centuries, and we can watch as clasps have evolved over time to meet the changing needs and preferences of different cultures and styles. One of the earliest forms of …
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Frequently Asked Question about Jewelry
… feeling that the ring feels “looser” in the finger. Diamond engagement rings with a comfort fit design have an oval cross section with very smooth rounded edges, giving them the comfort-fit name… physical properties of the Diamond “at the time of evaluation”. A certificate is a document which retains its value over a long period of time, assuming the Diamond does not chip or is not otherwise altered. An appraisal can be performed… the Dollar Value of the piece under consideration. Obviously, the Dollar Value can easily change considerably over a relatively short period of time. Appraisals are most often used for insurance purposes. What’s new with diamonds? …
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Gem in the Spotlight: Pearl
…. In 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 … Pearls Pearl is the traditional birthstone of June and is a favorite gem for weddings. Natural pearls have been discovered and cherished for hundreds of years. Only more recently have cultured pearl farming techniques been introduced …
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Types of Necklace Chains
… are extremely simple in design being comprised of round or oval links connected together one link at a time end over end. This simplicity gives them their timeless look, but it also gives them great strength and makes them one of the …much bigger look than other chain styles that use a comparable amount of material. However, due to the design of the overlapping links these chains are quite susceptible to twisting and kinking. The flat design of these chains does not …
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Gem in the Spotlight: Sapphire
… several sapphires. One of them, the Saint Edward’s Sapphire, is a large sapphire set in the center of a diamond cross on top of the British Imperial Crown. According to legend, Edward the Confessor, King of the Anglo-Saxons from 1042-1066… as a useful industrial tool. One last legend, the star sapphire has been called “the stone of destiny”; its three crossed lines represented faith, hope, and destiny
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Anatomy of a Ring
…This can sometimes be done so well that you would never know it was sized looking at the shank with your naked eye. Over time, the shank can wear thin—yes, even gold and platinum can wear away. In such cases a jeweler can “re-shank” the … for a ring, look for one with a sturdy, thick shank that will provide plenty of wear while still fitting with the overall design that you like. Gallery The gallery of a ring is a somewhat ambiguous term that refers to the underside of …
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How Are Lab Grown Diamonds Made?
…to IGI for sharing this video. The GE invention of the belt press uses an upper and lower anvil to generate pressure over 1.5 million pounds per square inch and temperature above 2,000 degrees Celsius. In this environment, the pure carbon…diamond seed and slowly builds up into a crystal, atom by atom, layer by layer. The CVD process has a few advantages over the HPHT process. High pressures are not needed, and temperatures, while high, do not need to be anywhere near as …
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The Magic of Polarized Light
…light source with a gap in between them to set a gemstone. When the filters are turned 90° from each other to their crossed position the light source is blocked, and the view goes dark. This is because they are both filtering out a … that have strain structures in them. Glass is one of the key examples of this. When rotated in a polariscope with crossed filters, something very strange happens. This visual phenomenon is referred to as snake banding, and it is a result …
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Gem in the Spotlight: Jade
…Because of the incredible detail, many of these centuries old carvings are still unmatched in quality to this day. Across the world, jadeite symbolizes prosperity, success, and good luck. The traditional jade flat disc with a hole in the … less than nephrite) Specific gravity: 3.3 Simulant and Synthetics Jade Jade has been replicated and imitated over the years. The most common imitations by far are dyed quartz, glass, and plastic. These imitations can be identified …
