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Fine Jewelry University Articles matching: “What does CI stand for”
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Fine Jewelry University (Show All FJU Articles)
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How to Clean Pearl Jewelry
…even symbols of purity get dirty from time to time. As you know pearls are produced when a mollusk secretes nacre to form a covering around a foreign body in its shell. Pearls are not as durable as gemstones produced by the heaving … environment and should not be stored in a plastic bag. Pearls should always be wiped on a soft, lint-free cloth before being stored. With care pearls can be worn for many years and even become a family heirloom
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Gem in the Spotlight: Quartz
… is resistant to scratching and chipping. It is also resistant to heat and chemicals, which means that it can withstand daily wear and tear very well. All quartz has the same refractive index at 1.54-1.55 and is doubly refractive. It has a…What is common and yet rare? What is well known but surprising? What is affordably priced sometimes and sometimes … get the “diamond” part of their name because they are typically very high clarity with sharp facets that somewhat resemble the facets of a diamond. That said, they aren’t worth anything close to what a comparable natural diamond would be…
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What are “Blood Diamonds”?
… Africa. The United Nations (UN) defines conflict diamonds as “…diamonds that originate from areas controlled by forces or factions opposed to legitimate and internationally recognized governments, and are used to fund military action … Global Witness and Partnership Africa Canada to create the Kimberley Process Certification System. This system was formally adopted in 2003 and guards against conflict diamonds entering the legitimate diamond supply chain. The diamond …
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The Magic of Polarized Light
… remember that if you are in the market for a new diamond or gemstone our trained gemologists have the tools, understanding, and experience to help find the … polarized light on a daily basis when we put on our sunglasses, turn on our TV, or sit down at our computer. But, what is polarized light exactly, and why is my jeweler writing about it? It turns out that polarized light is actually a … monitors wouldn’t work in the same way, and the latest blockbuster movie wouldn’t pop off the screen the way it does now. Polarizing filters even have uses beyond visible light finding critical roles in tools that work with radio waves, …
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Styles of Earring Backs
…. CONS Losing an Earring – The closest thing to a con for this style is that if you are a very active person, it doesn’t take a ton of force to pull the back off with just the wrong tug from just the wrong angle. For this reason those … any particular style of earring backs, or with any additional questions you may have. We would also love to hear what is your favorite style of back, and why it’s your favorite…backs, highlighting some of the pros and cons of each. Maybe you have a style in mind and don’t know the proper name for it. Maybe you are looking for the perfect gift. Maybe you are having trouble with your current earrings and are …
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How Are Lab Grown Diamonds Made?
… they had the idea to grow diamonds in the lab like they grew in nature. High Pressure High Temperature Diamonds How does nature form diamond crystals? Nature does it very deep underground. Diamond growing naturally takes place about 100 …to produce gem quality, lab grown diamonds that are large enough to be used in jewelry. But, how is it done? Early Efforts Throughout history, many people have claimed to have successfully synthesized diamonds. However, it was not until …
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Star White Gold
… of poor performance due to poorly made gas. White gold also has three grades. Grade 3 is off white, grade 2 is standard, and grade 1 is premium. This means that when white gold is made, it can be yellowish to light yellow. When white gold…. Most of them don’t know that jewelry manufacturers choose the white gold alloy mix. It is much cheaper to use the standard white gold alloy (again standard is the lowest) than a more white looking alloy. Most jewelry sales people don’t …
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Gem in the Spotlight: Topaz
… to be any color of your preference. Topaz itself is a hard gemstone with a Mohs hardness of 8. Mohs hardness is a standardized metric of how difficult it is to scratch something. For reference, topaz is a bit softer than diamond which is … a rainbow with all the colors at once.” And of course, all of them are right. History and Lore Topaz in its pure form is naturally colorless, clear like a diamond. The famous “Braganza Diamond” was thought to be the largest diamond ever…
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Gem in the Spotlight: Sapphire
Few gems capture the imagination as does sapphire. Sapphire’s beauty inspired people to wonder. Ancient cultures had many lore and beliefs about the sapphire… sapphire whose reflection gave the sky its color. Ancient priests and sorcerers honored sapphire above all gems, for this stone enabled them to interpret oracles and foretell the future. Symbolizing truth, sincerity and tradition, it …refused to shine when worn by the wicked or impure. Known as the celestial gemstone, the sapphire has been treasured for thousands of years. Known as the celestial gemstone, the sapphire has been treasured for thousands of years. Kings …
