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Fine Jewelry University Articles matching: “Process cut 2 carat solitao”
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Gem in the Spotlight: Pearl
… itself. Over time, layer upon layer of nacre is deposited around the irritant, eventually forming a pearl. This process can occur naturally or via human intervention. Natural pearls grow in the wild without human intervention. They are very…. They can take years, even decades, to form, and are found only in a few select locations around the world. The process by which they are created is completely unpredictable, and as a result, natural pearls come in a wide range of shapes, …
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The Difference Between White Gold and Platinum
… a shine for long. All white gold jewelry and most platinum jewelry are alloyed. The alloying is also a hardening process for both metals. The hardeners used in platinum is either 10% or 5% of the mix. 14 karat white gold has 42% and 18 …The amount of alloy mixed with gold is called its karat. The key to understanding gold karat is the karat value over 24. An example is a 14-karat gold wedding ring. It is 14/24, which equals 58.3% gold and 41.7% alloy. The white color …
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Gem in the Spotlight: Iolite
… of light rays in doubly refractive crystals. Thus, no singly refractive gemstone can exhibit pleochroism. The process works because of the ability of a gem to absorb different wavelengths of transmitted light depending upon its …, and the United States. In fact, the largest known iolite was found in Wyoming, weighing in at a whopping 24,000 carats (that’s over 10 pounds)! This commonality helps keep the price of iolite very affordable making it an excellent choice…
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Caring for and Cleaning Your Jewelry
… the most durable of all gems. In fact diamonds have been through a lot of stress before they reach you. The mining process and cutting tests the stone long before it reaches you. With conscious care, the diamond can last for generations … is related to the Mohs hardness scale. Diamond is the hardest at 10. Talc is listed as 1 the softest. Pure gold (24 karat) is Mohs 2.5, 14 and 18 karat list at Mohs 3. Platinum list at Mohs 4.33. Sterling silver list at Mohs 2.5. This…
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Gem in the Spotlight: Amethyst
…Notable Stones One of the most famous amethyst stones is in The Morris Amethyst Brooch which is set with a large 96 carat heart shaped amethyst. It resides in the collection of the Smithsonian Institution, National Museum of Natural … of quartz at 1.54-1.55 and is doubly refractive. It has a vitreous polish luster and its specific gravity is 2.66. Its chemical composition is SiO2. History and Lore The rich history of amethyst dates all the way back to ancient Greek…
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Gem in the Spotlight: Blue Zircon
…vacuum to the speed of light through a transparent gem. Light is bent as it moves from air to the gem material. This process breaks light into its spectral hues like a rainbow. Then the rainbow effect is broken and focused by the facets of … of Zircon Why does zircon have so much more fire then other colored gems? Zircon has a high refractive index (1.92–2.01). The refractive index (abbreviated RI) of a gemstone is its optical property that refers to the ratio of the …
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Gem in the Spotlight: Spinel
…ago when scientists who were trying to synthesize blue sapphire wound up creating spinel by mistake. Since then many processes have been used and perfected to create spinel in even more colors than it is naturally found in. Because of how … separate the two. Natural spinel has a refractive index of 1.718 while its synthetic counterpart (depending on the process used) has a refractive index of 1.728. In recent years, scientists have developed new techniques to synthesize sheets…
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How to Sell Your Jewelry
… at its intrinsic worth. The intrinsic value is the metal (gold, platinum, silver) price plus any gems. The refining process used to recover the metal utilizes strong chemicals and has strict environmental regulations which impact the price … will not happen. Some stores will pay immediately, others pay after a set time or when you call. Find out what the process is if the store closes or moves. Many people have lost track of their jewelry altogether. Understand what the store’s…
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The History of Diamond Cuts
… the shape of an “M” in 1477. The Earliest Diamond Cuts Once it was understood that only diamond can cut diamond the process of changing the shape of a diamond began. In the 15th century cutters would saw off part of the octahedron to create… the precious stones, but of all human possessions.” said by Pliny, the Roman historian. The story of the diamond cut is the story of humankind’s love of diamonds and our quest to unlock their true brilliance. Before Diamond Cutting The …
