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Fine Jewelry University Articles matching: “pear cut”
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Fine Jewelry University (Show All FJU Articles)
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The History of Diamond Cuts
… is. The next important diamond cut is the French cut. The French cut is a square or rectangular cut diamond. It appears square when viewed from above because it is based off the octahedral shape of the natural diamond. The French cut has… the four sides of the table are four triangle facets that point towards the corners of the crown. This gives the appearance of a four-pointed star. The pavilion is cut into four main facets. Moving Towards Brilliance The evolution of the…
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Gem in the Spotlight: Peridot
… for green. Peridot’s color ranges from yellow-green to a warm olive green, and it is distinguished by its soft appearance. Color is the most important characteristic when determining the value of a Peridot gem. The deeper green the …, the higher its value. There is a lot of confusion over the pronunciation of peridot. It is actually pronounced “pear-a-doe” instead of “pear-a-dot” although you will find many, even in the jewelry trade, who use the mispronunciation on …
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Anatomy of a Ring
… 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 may need to be built up by a … of cathedral arches. Some are sleek and plain, some are wider and covered in accent diamonds. The size and cut of the center stone also may vary, but when you see those arches of metal rising up toward the center, you’ll know, it’s a …
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Caring for and Cleaning Your Jewelry
… spot can chip or break the stone. This does not mean that diamonds are not very durable. They are the most durable of all gems. In fact diamonds have been through a lot of stress before they reach you. The mining process and cutting tests the stone long before it reaches you. With conscious care, the diamond can last for generations just as beautiful as the day you got it. Diamonds can withstand most chemicals, unfortunately the metal jewelry cannot and will be …
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Types of Necklace Chains
… the same as the cable chain except that it features wide, rounded chain links. This gives the chain a heavier appearance and can increase its longevity and strength to some extent. It shares many of the same pros and cons as the standard… a light, airy feel. These chains will be often be diamond cut which gives them an even more lively and glittering appearance. Diamond cutting on a chain means there are small notches that are cut into the links and brightly polished. …
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How to Value Inherited Jewelry
…operations. The intrinsic values for the gems are based on the cash wholesale price of the gem minus any cost for re-cutting or re-polishing the gem if it is worn or cut in an obsolete style. Intrinsic diamond and gem prices are not …
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Gem in the Spotlight: Opal
… 10, Sapphire 9, Amethyst 7, and Peridot 6. Turquoise is about as hard as opal, but you would need to consider Pearl or Amber (both 2.5) to find a commonly used gem that is softer than opal. Common Opal Treatments There are several … doublets, a lapidarist will use a piece of ironstone or black onyx and glue the fragile piece of opal to it before cutting and leaving them glued together after the fact to be set into jewelry. In triplets, that thin piece of opal is …
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Gem in the Spotlight: Amethyst
… be synthetic. This is a fairly recent discovery as many low cost, high quality, deeply colored amethysts are now appearing in inexpensive jewelry. Because the cost of testing is higher than the cost of even the natural stones it is not …
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The Magic of Polarized Light
…looking at the facet junctions on a moissanite. When looking through a microscope two images of the facet junction appear. This is because the stone has a high birefringence (i.e. a high amount of double refraction). When you hold a … of the images disappears; as you rotate the polarizing filter the current image disappears and the second image appears. This is because the two images are transmitted at different angles, and the polarizing filter only allows one angle …
