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Fine Jewelry University Articles matching: “Arrow and number 7”
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How Are Lab Grown Diamonds Made?
The dream of making a beautiful and valuable diamond from simple carbon has long captivated the imagination of scientists and visionaries alike. Just … claimed to have successfully synthesized diamonds. However, it was not until relatively recently that a documented and reproducible process was demonstrated. Henri Moissan was one of the early pioneers in the field. In 1893, he claimed …, but none could ever be scientifically verified. The quest continued. Diamonds are a crystalline form of carbon, and so making artificial carbon crystal was the problem of lab grown diamonds. For decades, manufacturers of synthetic …
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Gem in the Spotlight: Amethyst
Amethyst is known for its beautiful purple color, and it is the most important quartz variety used in jewelry. Purple has long been considered a royal color, so it is not… in so much demand throughout history. Gemology Amethyst is a variety of quartz that is colored by the presence iron and aluminum. The violet color of amethyst can range from a pale lavender to a deep, dark purple, and it is often found …, and Madagascar, but it can also be found in smaller deposits in other countries such as Russia, the United States, and Canada. Amethyst is known for its durability with a Mohs hardness rating of 7. For reference, amethyst is roughly as…
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Styles of Earring Backs
…in many different styles. Here we will explore the more common types of earring 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 …having trouble with your current earrings and are looking for alternatives. Or maybe you are simply interested in expanding your general jewelry knowledge. Keep reading; we have your answers. Friction Backs (Butterfly Backs) Also called…
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Gem in the Spotlight: Spinel
… 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. In recent years, spinel has started to move out… be appreciated in its own right, and we can see why. Its colors rival even the best rubies, sapphires, tourmalines, and other more popular gems. For only the 3rd time in the last one hundred years, the industry is modifying the official…
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Gem in the Spotlight: Tourmaline
… never heard of. Less popular than the likes of ruby or sapphire, tourmaline flies under the radar in the gem world and remains the best kept secret of gem collectors and connoisseurs who appreciate its unique properties and stunning … to be ruby, sapphire, or emerald. Gemology of Tourmaline Gemologically speaking, tourmaline is its own mineral and not a species or member of a different family (unlike emerald and aquamarine, for example, which are members of the beryl…
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Platinum
Everything you ever wanted to know (and more) about Platinum and its use in jewelry. Platinum is one of the rarest and most durable precious metals. … forever, unlike other white metals which can, in time, turn yellow or tarnish. Platinum belongs to the noble and precious metals family. It is resistant to tarnishing and discoloration due to chlorine and other chemicals. These factors…, have made platinum an increasingly popular choice for jewelry, either on its own or as the setting for diamonds and other precious gemstones. Platinum jewelry does not fade or tarnish and keeps its looks for a lifetime. Platinum’s …
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What Are Lab Grown Diamonds?
…. The complexity arises from the fact that lots of different terms have been used to describe lab grown diamonds and their cousins, and not everyone uses these terms in the same way. So, let’s begin with some vocabulary. Synthetic. … technical term. When speaking technically, synthetic gems are man-made crystals with the same crystal structure and chemical composition as the specific gem that is being created. Therefore, a “synthetic diamond” has the same crystal …
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Synthetic Gems: The Whole Story
Ruby, sapphire, emerald and alexandrite are very beautiful gems and very rare in their stunning beauty. These four gems have been coveted by … of years. But, what if anyone could own them? At gem shows and museums, I have seen jaw dropping rubies, sapphires and emeralds. These gems in high quality have put ownership beyond most people to justify the price. Just a one carat gem…over $10,000 routinely. The answer was to find 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 …
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Fake Diamonds: The Great Diamond Attack
A popular game show would have three people all say that they were someone and the contestant would try to find out who was the real person. Technology has created many new diamonds and diamond … these days. And the problem of separating a fully natural diamond from all the modern possibilities is quite demanding. So what is a real diamond? Let’s start with the older diamond look a likes, (CZ, GGG, YAG, Synthetic corundum and … tester and understanding gem properties make choosing the diamond an easy task with these older lookalikes. Apathy and sloppy observation can let one of the older lookalikes get by, but generally the profession is dealing with these …
