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Fine Jewelry University Articles matching: “Antique hallmark number 2”
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Fine Jewelry University
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The Magic of Polarized Light
… is to help identify doubly refractive stones. When using a refractometer, a circular polarizing filter is fitted over the magnifier. When twisted, if the stone is doubly refractive, the refractive index line will jump from one number to the next. Once you know if a stone is doubly refractive or not you can use that information to narrow down the list of possible candidates of what the stone could be. A great example of this phenomenon can be seen when looking at the …
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Gem in the Spotlight: Ruby
… jewelry, please reach out to us anytime. We would love to create something together or help find that one-of-a-kind …, 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 property of rubies is that they emit fluorescent light at a very … Imperial State Crown, is actually a red spinel. History and Lore of Ruby The first discoveries of ruby date back to 2,500 B.C. They were found alongside stone age tools in historic mines in Mogok, Myanmar. The Bible compares the price…
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How to Value Inherited Jewelry
…is missing, then the equitable division of the jewelry is in doubt. Like most products, jewelry value is not one set number. It changes with the situation (who is buying, and who is selling) and the marketplace (global economy, commodity … a new jewelry item like the piece would cost. As a classic example, under a replacement price standard of value a 2000 model year Toyota Camry car would be valued at the current price of a brand new Toyota Camry. Of course, there is …
