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Fine Jewelry University Articles matching: “Man made”
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Fine Jewelry University (Show All FJU Articles)
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How Are Lab Grown Diamonds Made?
…was demonstrated. Henri Moissan was one of the early pioneers in the field. In 1893, he claimed to have successfully made a diamond by heating charcoal to 3,500 degrees Celsius inside a carbon crucible. Many attempts were made to … of deep volcano brings them up to where humans can find and mine them. The first successful synthetic diamonds were made by mimicking nature with High Pressure/High Temperature (HPHT) manufacturing. There are three basic manufacturing …
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Synthetic Gems: The Whole Story
…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 tongue twister like …In gemology we call this a synthetic gem. Synthetic gems are not bad, fakes, or the curse of a modern society. So a man made synthetic ruby has the same exact chemical formula and crystal structure and optical characteristics as a natural …
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What Are Lab Grown Diamonds?
In the simplest terms, lab grown diamonds are diamonds that have been made by people instead of mined out of the earth. If it’s so simple, you might wonder why there’s an entire article below… the key that unlocks this entire question. Synthetic can mean artificial or even fake. Synthetic can also mean man–made, copied, unreal, or even imitation. But, in this context, what do we mean when we say “synthetic diamond”? In the … misrepresentation has seriously confused what the term “synthetic” means, and it’s why most producers of man–made diamonds prefer the term “lab grown” over “synthetic.” In order to appreciate this fully, it helps to understand a little …
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Fake Diamonds: The Great Diamond Attack
…thermal inertia testers) is the front line in finding diamond fakes or look a likes. Modern science has developed a man made gem that can fake out the standard diamond tester. Moissanite is lab-created, silicon carbide, and it gives a …, refractive index of 2.65, dispersion of 0.0104, and a specific gravity of 3.21. More creative uses of this man made gem are in the pipeline. The Big Bad Synthetic In the gem world we use words with particular meanings. Synthetic is one of …
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Brands and Designer Jewelry
… their followers expect. Style Jewelry styles must look good and be wearable. A particular piece may be very well made and last for years, but if it goes out of fashion, people won’t generally want to wear it. It is important that a … all over. You can also find un-branded jewelry that looks great on day one, but turns out to be very cheaply made. Some designers can become complacent and let their designs fall out of fashion. Sadly, there are no guarantees. But, in …
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Star White Gold
…. In addition, not all gas is created equally. We have all had the experience 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 they buy it. I have seen a yellow gold ring heavily plated to look white. This was a true 14 karat yellow gold made to look white and it worked for a while. What the white gold task force did is come up with the three grade levels …
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Jewelry Solder: What You Should Know
… our discussion on gold jewelry, but the same concepts also apply to silver and platinum as well. If your ring is made out of 14 karat gold, you know that approximately 56% of it is gold with the rest being made up by a variety of …re having some trouble with the solder in your jewelry and you are interested in having it removed (or the jewelry remade into something new) please don’t hesitate to contact us or leave a comment … in solder, you may want to remove the solder if possible. At our shop, we have a laser welder which allows us to do many of the jobs traditionally done with solder using the laser instead. We no longer need to use special solder alloys …
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Gem in the Spotlight: Spinel
… the official birthstone list. Spinel will be joining peridot as the August birthstone! This change was officially made in 2016, but only in the last couple of years have we started to see the majority of the industry get on board. If you… been opened up. Spinel is arguably the most overlooked and underappreciated gemstone of all time. Spinel was first made in a lab over 100 years ago when scientists who were trying to synthesize blue sapphire wound up creating spinel by …
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Gem in the Spotlight: Jade
… can drastically change the value of the gem. History and Lore of Jade Jade’s incredible toughness has made it a useful tool throughout history. During the Stone Age of many cultures, jade was used for agricultural tools and weapons such …. It was during this time, from the 1700s-1900s, that some of the most intricate and advanced jadeite carvings were made. Some of the carvings took as long as 10 years and a team of up to 50 carvers to make. Because of the incredible …
