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Fine Jewelry University Articles matching: “princess cut semi mount”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Alexandrite
…Stunning color change on a natural alexandrite. Alexandrite History and Lore Alexandrite was first found in the Ural Mountains in Russia in the 1830s. When it was first discovered by a Finnish mineralogist, he mistook it for emerald … is still being mined today in Sri Lanka and Brazil, very few compare to the quality of those found in the Ural Mountains. While alexandrite doesn’t have a several thousand-year-old history like ruby, it quickly took the world by storm. …
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Understanding the Diamond Buying Game
… thousands of dollars different. It is a favorite trick of some diamond wholesalers to use GIA labs for very poorly cut diamonds. The general public knows GIA is a quality lab and mistakenly thinks the diamond is quality. The Dirty …00 carat H VS2 accurately graded diamonds from GIA labs can be worth thousands of dollars apart. How? One way is the cut of the diamond. Diamond one can be a nice cut (61.5%) and diamond two could be a very poor cut (68%). Another way is…
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Jewelry Repair FAQ
…these prongs can become worn down. If the prongs wear down too much, the stone becomes at risk of falling out of the mounting. Retipping is the process of adding a small amount of metal (usually gold or platinum) to the top of worn down … to adhere those molecules to the jewelry’s surface. Molecules 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 …
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The Magic of Polarized Light
…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 polarizing filter over the stone one of the images disappears; as you rotate … are a few of the places you will find polarizing filters in everyday life: Sunglasses: Polarized sunglasses help cut through reflections in water and glass so that we can see easier. Camera lens/filters: Polarizing lens filters reduce …
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How Are Lab Grown Diamonds Made?
…G color, SI1 clarity CVD diamond will sparkle just as brilliantly as a G color, SI1 HPHT diamond (assuming they were cut to the same proportions of course). That’s where we come in. At Arden Jewelers we require each lab grown diamond … training and our in-house gem lab to evaluate every aspect of the lab grown diamonds we sell from the color, to the cut proportions, inclusions, and more. So, whether it’s natural, CVD, HPHT, or some new technology in the future, you …
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Gem in the Spotlight: Ruby
…ss of 10) and moissanite (which is in between). Rubies only occur in the color red which comes from trace amounts of chromium in the crystal structure. If they are too purple or too pink, they are called purple sapphires or pink sapphires,…, and spinel have been mistaken for each other. Famously, the Black Prince Ruby (formerly thought of as the largest cut ruby) at the center of the British Imperial State Crown, is actually a red spinel. History and Lore of Ruby The first…
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Is a Lab Grown Diamond Right for Me?
…I have heard some in the industry refer to lab grown diamonds as fakes (also completely false). We’re here to help cut through some of the rhetoric, so you can make an informed and logical decision about what kind of diamond is right for… durable, and we have been in the diamond recycling business for over 25 years. Once a diamond has been mined and cut, it can pass from generation to generation, diffusing the environmental impact of mining the diamond significantly. …
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Frequently Asked Question about Jewelry
… Laboratory describing a Loose Diamond. The laboratory will not issue certificates on Diamonds which are set in a mounting. A Diamond Certificate issues a “grade” indicating the physical properties of the Diamond “at the time of evaluation…assuming the Diamond does not chip or is not otherwise altered. An appraisal can be performed on a loose Diamond, a mounted stone, or jewelry. If the stone is not loose, the physical properties are estimated using various estimation …
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Gem in the Spotlight: Quartz
…is another amazing physical property of quartz. When quartz is broken, pulled apart, or scratched it releases small amounts of static electricity as light. If you take two pieces of quartz and rub them together in a dark room, they create … you looked at the title and knew). Quartz is one of the most common minerals on earth. Many quartz varieties are cut into gemstones, but some varieties are very rare. Some are ordinary like rock quartz, others are exotic like Drusy …
