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Fine Jewelry University Articles matching: “Gold necklaces with letter p”
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Gem in the Spotlight: Topaz
… one person say, “I love Topaz; it reminds me of a blue sky.” Then her friend says back, “Topaz may be like a golden sunset, but not the sky.” A third friend will chime in, “You’re both crazy, it’s like a beautiful peach.” Then, a … Zabargad). Of course, topaz isn’t found there, but the island used to be a source for peridot which was confused with topaz before modern gemology. In ancient times, topaz was believed to protect its wearer. Topaz was also thought to …
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Fake Diamonds: The Great Diamond Attack
…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 spinal, Glass) or simulants are quite easy to …. Apathy and sloppy observation can let one of the older lookalikes get by, but generally the profession is dealing with these well known simulants easily. The diamond tester (thermal inertia testers) is the front line in finding diamond …
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Gem in the Spotlight: Iolite
… be near the top of the list. Iolite’s color range of blue, blue-violet, and violet competes for public attention with sapphire, tanzanite, and amethyst. They may have name recognition, but iolite has a rich, unique color and great gem …optical phenomenon in which a substance appears to be different colors when observed at different angles, especially with polarized light. Pleochroism is caused by differing absorption of light rays in doubly refractive crystals. Thus, no…
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How to Tell If a Diamond Is Natural or Lab Grown
… 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 grown and synthetic diamonds before continuing with … simulants like Cubic Zirconia (CZ) or Moissanite, it is easy to identify them because they aren’t diamonds. But, with lab grown diamonds, the chemical structure and properties are all the same as natural diamond, so it becomes much more …
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Gem in the Spotlight: Opal
… birthstone for those lucky enough to born in October, and it is found in a huge variety of colors (sometimes all within the same stone). Gemology of Opal Opal’s captivating dance of colors is a result of its unique internal structure. …varieties each possessing its own distinctive beauty. The distance between each sphere of silica causes interference with light breaking it up into its spectral hues. Depending on how the spheres are packed together, you will get …
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Synthetic Gems: The Whole Story
…synthetics are so well made it is impossible to id them in jewelry and can only be positively identified in gem labs with millions of dollars worth of equipment and world class personnel. Synthetic diamonds on the high end and synthetic …Ruby, sapphire, emerald and alexandrite are very beautiful gems and very rare in their stunning beauty. These four gems have … 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 gems in high quality have put ownership beyond most people to justify the …
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Gem in the Spotlight: Jade
… 1700s, gem carving had already been a tradition for thousands of years. At that time, gem carvers worked primarily with nephrite, quartz, lapis lazuli, and wood. With the introduction of jadeite, the carvers switched focus from the …to this day. Across the world, jadeite symbolizes prosperity, success, and good luck. The traditional jade flat disc with a hole in the middle, known as a “bi,” symbolizes heaven. Gemology of Jadeite and Nephrite Gemologically speaking, …
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Gem in the Spotlight: Aquamarine
… has some illustrious cousins in addition to a rich history of its own. The Mythology of Aquamarine Long associated with tranquility and happiness, aquamarine was also thought to instill courage, cure laziness, and sharpen the intellect. … from Garrard in 1957. The Gemology of Aquamarine Like emerald, aquamarine is a member of the beryl family (along with morganite, heliodor, and others). Unlike emerald, it is frequently free of flaws and often occurs in large crystals. …
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Gem in the Spotlight: Amethyst
… 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 hard as tourmaline, softer than sapphire and topaz, … that is resistant to scratching and chipping. It is also resistant to heat and chemicals which means that it can withstand daily wear and tear. Amethyst has the same refractive index as other varieties of quartz at 1.54-1.55 and is …
