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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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Gem in the Spotlight: Jade
… for decades, almost all of the jade on the mainstream jewelry market is dyed. Dyed jade is detectable using standard spectroscopy. Another common method of treating jade is polymer-impregnation. This can be used in conjunction with dye to…and it has been an incredibly important part of Asian, Central American, and North American history ever since. But, what is jade, and what has given it such a prominent place in human history? The term “jade” actually refers to two …
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Gem in the Spotlight: Blue Zircon
…Zircon colors are pure and have that distinctive fire that sets it apart from other gems. The Gemology of Zircon Why does zircon have so much more fire then other colored gems? Zircon has a high refractive index (1.92-2.01). The …heat treatments. Zircon is a durable gemstone with good hardness on the Mohs scale (6 to 7.5). However, Zircon has what is known as indistinct cleavage which creates a somewhat brittle tendency that can lead to chips, especially along …
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Brands and Designer Jewelry
… quality are the three attributes that luxury jewelry brands are known for. Jewelry brands or designers have a high standard to live up to or they are abandoned. There is no excuse for poor execution, and most deliver the style and quality… to deliver a superior product. This is a no compromise area. The jewelry must meet the most stringent of quality standards. Jewelry brands must use quality metals (like high-karat gold and platinum), first-rate gems, and highly skilled …
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The Birthstones
…’s Birthstone: Diamond April’s birthstone is the emblem of fearlessness and invincibility. Courage, strength and fortitude were attributes given to the wearer of diamonds. The diamond has been a symbol of eternal love since the 15th … with a diamond ring. Of all jewels, the diamond is supreme and worthy of the name precious stone. It qualifies for all the virtues implied in that term: brilliance, hardness, rarity, antiquity, purity and permanence. Learn more about …
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Gem in the Spotlight: Opal
… (see above). Other names for this kind of opal include: jelly opal and water opal. Australian Opal: This is a somewhat vague term that can be used to describe any opal that comes from Australia. In everyday conversation, some people use … world, and the lore that surrounds it is almost as colorful as the gem itself. Opal is the traditional birthstone for those lucky enough to born in October, and it is found in a huge variety of colors (sometimes all within the same …
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Synthetic Gems: The Whole Story
…rare in their stunning beauty. These four gems have been coveted by rulers and the rich for thousands of years. But, what if anyone could own them? At gem shows and museums, I have seen jaw dropping rubies, sapphires and emeralds. These … a less expensive way to have these gems. It took over a hundred years and millions of dollars of research to create what nature can produce. Man made gems come in many forms. Every thing from simple glass to plastic to high tech chemical…
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Gem in the Spotlight: Spinel
… regularly for the last century, whether it is with an heirloom piece of jewelry or something found at the beach, what many people have believed to be a ruby for years turned out to be spinel. While modern technology and gemological …, the Great Imposter” sounds like the title of an action movie, but it could also be the title of this article. For years spinel has been confused with other gems and even today is often used as a substitute for similar looking stones. …
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Anatomy of a Ring
… 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 the ring beneath the center stone. There is often a design on the top … plan to wear them together all the time. When you are looking for a ring, pay attention to how the gallery is made. Does is look substantial enough to hold the ring together? Are the gallery wires thin and easily breakable? Will it …
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How to Tell If a Diamond Is Natural or Lab Grown
…real? This is a question we get all the time, and it’s not as simple as you might think. First, you have to decide what “real” means. If you are not familiar with lab grown diamonds, you might want to check out our introduction to lab … top gem labs and jewelry manufacturers daily, and it has already helped us catch undisclosed lab grown diamonds. It does not suffer from many of the limitations of the Type IIa tester, and it even works on diamonds that are set in …
