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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Topaz
… baseball joke, “Who’s on First?” “Yes, Who’s on First…” always comes to mind when I hear people discussing Topaz. You can hear one person say, “I love Topaz; it reminds me of a blue sky.” Then her friend says back, “Topaz may be like a…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 found (prior to the Cullinan Diamond) at 1,680 carats …
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Fake Diamonds: The Great Diamond Attack
…, excellent toughness, 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 … natural diamond but made in a factory. Yes, they can make synthetic diamonds and have for many years now. Most are used in the manufacturing of tools like diamond tip drills. Synthetic diamond crystal big and pretty enough for jewelry …
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Gem in the Spotlight: Tanzanite
…. Eventually, as the stones made their way through identification channels they found their way to the Henry B. Platt, the VP of Tiffany & Co. at the time, who named the stone tanzanite after the country of origin. Tiffany then … Tanzanite is 1,000 times rarer than diamond. But, what makes Tanzanite so popular is its color. Tanzanite’s gorgeous color is a captivating mix of blue and purple. The deep hues of violet, indigo, and blue come together in an unrivaled…
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What Are Lab Grown Diamonds?
…n entire article below this sentence. 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 w…imitation or fake gems that are often, incorrectly, described as synthetic diamonds. This misrepresentation has seriously confused what the term “synthetic” means, and it’s why most producers of man-made diamonds prefer the term “lab …
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Gem in the Spotlight: Blue Zircon
…any colored gem. In fact, before any of the manmade diamond simulates were made, the colorless version of zircon was used in jewelry to mimic diamond. Why? Natural zircon is known for its scintillation, brilliance, and flashes of color … material. This process breaks light into its spectral hues like a rainbow. Then the rainbow effect is broken and focused by the facets of the gem to create the brilliant light show we see. Zircon is also of interest to geologists …
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How to Clean Pearl Jewelry
… and chastity. But 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 … damage pearls. They should be cleaned in warm soapy water periodically, gently scrubbing individually with a soft brush. A soft brush must be used so as not to scratch the surface of the pearl. Care must be taken to clean well around …
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Frequently Asked Question about Jewelry
… is redesigned jewelry or redesigned? Simply put, a redesign is a custom design using your existing gems and gold or platinum. This does not mean you are limited by the gems you have, but what you have is incorporated into the new design… answer some of your questions about jewelry in general. If you have a question you’d like answered, please contact us and we would be happy to help. What is a Gemologist? A gemologist is one who studies gems and jewelry scientifically…
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Gem in the Spotlight: Tourmaline
… array of colors. In fact, tourmaline is found in almost any color you can imagine, and people have most likely used and appreciated it for hundreds of years. But, before the advent of modern gemology, most tourmaline was believed to be… electrically charged when under mechanical stress (squeezed or impacted). This effect allowed the stone to be used in early sonar systems in the First World War as well as in extremely sensitive pressure gauges in submarines. History …
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The Birthstones
… Garnet February’s Birthstone: Amethyst Amethyst, transparent purple quartz, is the most important quartz variety used in jewelry. Purple has long been considered a royal color so it is not surprising that amethyst has been so much in …. Among its reputed benefits was an ability to quicken the intelligence and make the owner more successful in business, protect the soldier and assure victory, help hunters, guard against contagious diseases, and control evil thoughts. …
