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Fine Jewelry University Articles matching: “Resizing ring time”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Jade
… 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 as axe heads and knives. Jade has… for medicinal purposes and carved it into jewelry and religious artifacts. When jadeite reached China for the first time in the 1700s, gem carving had already been a tradition for thousands of years. At that time, gem carvers worked …
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Art Deco vs. Art Nouveau Style Jewelry
… in the late 19th century (1890 – 1910), Art Nouveau emerged as a rebellion against the academic art of the time. It sought to bring the natural world into artistic design, emphasizing flowing lines, asymmetrical forms, and motifs … by its celebration of modernity, geometric shapes, and luxurious materials. The opulence and optimism of The Roaring 20’s formed the perfect backdrop for this new kind of art to emerge. Art Deco jewelry design embraced symmetry, bold …
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The Difference Between White Gold and Platinum
… 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 is achieved by a careful choice of the alloying … because if you don’t like the light yellow look of a specific manufacture, then don’t buy it. New white gold rings are usually coated with a hard protective finish of rhodium, a silver-white metal like platinum. The rhodium plating is …
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Platinum
… enhances the brilliance and will maintain its shining luminosity forever, unlike other white metals which can, in time, turn yellow or tarnish. Platinum belongs to the noble and precious metals family. It is resistant to tarnishing and … for diamonds and other precious gemstones. Platinum jewelry does not fade or tarnish and keeps its looks for a lifetime. Platinum’s purity makes it hypoallergenic and ideal for those with sensitive skin. All the platinum ever mined would…
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Gem in the Spotlight: Opal
… traditional 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 …body color. A gemologist with right training and equipment will be able to detect this treatment. Opals can also sometimes be dyed, giving them an unnatural but fascinating body color such as a vibrant green or pink. Some opals that have …
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The Magic of Polarized Light
… with singly refractive (SR) gems like diamond that only bend light in one direction. Gemologists use the term birefringence to refer to how doubly refractive a particular gem is. By far the most common use of polarized light in gemology …When looking through a microscope two images of the facet junction appear. This is because the stone has a high birefringence (i.e. a high amount of double refraction). When you hold a polarizing filter over the stone one of the images …
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Gem in the Spotlight: Quartz
What is common and yet rare? What is well known but surprising? What is affordably priced sometimes and sometimes unattainably expensive? If you answered quartz to all these questions you would be right (but …. One famous one is “Alaska Diamond” for rock crystal alongside “Herkimer Diamonds” (see below). In recent times, the term “Green Amethyst,” which was commonly used for Prasiolite, has come under fire. It even attracted the attention of …special to people. Microcrystalline means that the stone is made up of smaller crystals and not one big crystal. Sometimes you can see this structure with your naked eye as with Drusy Quartz, or you may need the aid of 10-50x …
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Jewelry Repair FAQ
… you have a question that you don’t see answered here, please contact us and let us know. A gemstone fell out of my ring. Will the new stone match the old one? We get this question all the time. People want their jewelry to look just the … retip prongs next to many gemstones (diamonds, sapphires, and rubies for example) without removing them, saving you time and money. Can my costume and fashion jewelry be fixed? Yes and no. A few years ago, the answer to this question …
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Jewelry Solder: What You Should Know
Solder is the unseen “glue” that holds most jewelry together. If you have ever had a ring sized, a chain repaired, or your wedding set joined together, you have very likely seen solder in action. But, what …? To answer this question we first have to understand metal alloys. If you haven’t already, now would be a great time to read our article on gold purity . Now you should know that the metals that make up our jewelry are actually a mix of … will focus 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…
