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Fine Jewelry University Articles matching: “Value of an emerald gem”
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Fine Jewelry University (Show All FJU Articles)
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How to Tell If a Diamond Is Natural or Lab Grown
…best indicators of whether a diamond is lab grown is whether or not it is a Type IIa diamond. Type IIa is actually a gemological variant of the diamond that relates to how pure the carbon is that makes up the diamond. In nature, less … Type IIa. So, if a diamond is Type IIa, that’s a pretty good indication that it is lab grown. However, like any gemological test, the Type IIa test is only an indicator for the gemologist to use. There are lab grown diamonds that are …
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Gem in the Spotlight: Sapphire
…, Edward the Confessor, King of the Anglo-Saxons from 1042-1066, met a beggar one day. King Edward had nothing of value on him except for his sapphire ring, which he generously gave to the beggar. The beggar was really a messenger from God…Few gems capture the imagination as does sapphire. Sapphire’s beauty inspired people to wonder. Ancient cultures had many … a giant 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 …
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What Are Lab Grown Diamonds?
…copied, unreal, or even imitation. But, in this context, what do we mean when we say “synthetic diamond”? In the gemological world, synthetic is a highly technical term. When speaking technically, synthetic gems are man-made crystals … structure and chemical composition as a natural diamond. The same cannot be said of the many imitation or fake gems that are often, incorrectly, described as synthetic diamonds. This misrepresentation has seriously confused what the …
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Frequently Asked Question about Jewelry
… studies gems and jewelry scientifically, who knows and identifies them, can judge the elements and their beauty and value, and can apply this knowledge. This training and experience combine to make a gemologist. A gemologist like other … the physical properties of the Diamond “at the time of evaluation”. A certificate is a document which retains its value over a long period of time, assuming the Diamond does not chip or is not otherwise altered. An appraisal can be …
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Gem in the Spotlight: Ruby
For much of human history, rubies have been the most prized gemstone. But, what is it about this red gem that has captivated our hearts and minds for so long? Is it ruby’s color? … deeper? Whatever it is, ruby’s impact on humanity is broad and deep, with arguably the richest history of all gemstones. Gemology of Ruby Rubies are in the corundum gem family along with sapphires. Corundum is an extremely durable form … too pink, they are called purple sapphires or pink sapphires, respectively. Since sapphires and rubies are the same gem material, they also share a refractive index of 1.762-1.770 and a specific gravity of 4.00. A unique optical …
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Gem in the Spotlight: Peridot
…, and it is distinguished by its soft appearance. Color is the most important characteristic when determining the value of a Peridot gem. The deeper green the peridot is, the higher its value. There is a lot of confusion over the …Peridot is a lovely yellow-green gem with a rich history. Legend has it that Peridot was the favorite gemstone of Cleopatra. The ancients called it the “…dissolve curses but only when set in gold. Peridot is the birthstone for August. It is also the accepted anniversary gemstone for the 16th year of marriage. Peridot’s unique yellow-green color is very attractive. The name “Peridot” is …
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Gem in the Spotlight: Pearl
…, textured patterns. See More on Etsy › What Makes a Pearl Valuable? There are several factors that can effect the value of a pearl. Understanding these factors can help you make an informed decision when purchasing pearls. Size: The size … with thicker nacre are generally more durable and valuable. Origin: The origin of the pearl can also affect its value. Pearls from certain regions, such as Tahiti or the South Sea, are highly prized and more valuable. These seven factors …
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Fake Diamonds: The Great Diamond Attack
…Synthetic corundum and spinal, Glass) or simulants are quite easy to separate. The diamond tester and understanding gem properties make choosing the diamond an easy task with these older lookalikes. Apathy and sloppy observation can let …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 positive …
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Gem in the Spotlight: Morganite
… popular gemstones. Morganite has an impressive family tree. It is a beryl gem which puts it in the same family as emerald and aquamarine. Because of its association with emerald it is sometimes called “Pink Emerald”. Other names for …. Its durability is rated as excellent. Its hardness is 7.5 – 8.0 on the Mohs hardness scale which is comparable to emerald, topaz, and spinel. Its refractive index is 1.560 – 1.600, and its specific gravity is 2.67 – 2.90. These …
