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Fine Jewelry University Articles matching: “hold period”
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Fine Jewelry University
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How to Clean Pearl Jewelry
…used when cleaning them. Pearls should be the last thing that you put on and the first thing that you take off. Common personal products like cosmetics and perfume can severely damage pearls. They should be cleaned in warm soapy water periodically, gently scrubbing individually with a soft brush. A soft brush must be used so as not to scratch the surface of the pearl. Care must be taken to clean well around the drill hole, but do not dip the whole strand into the cleaning…
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Jewelry Repair FAQ
… in for regular check-ups. In between check-ups, it’s also a good idea to check if your ring has any loose stones. The easiest way to do this is to listen for a faint rattling sound from your ring. Every so often, take your ring off, hold it very close to your ear with one hand and gently tap the bottom of the ring with the other. If you hear a rattling sound, a gemstone might be loose. We recommend you stop wearing the ring immediately and bring it in so one of our …
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Caring for and Cleaning Your Jewelry
… Mohs 3. Platinum list at Mohs 4.33. Sterling silver list at Mohs 2.5. This shows why jewelry metals get scratched by things like hard toothbrushes and dirt (most dirt ranges 4-8 on the Mohs scale). Several different types of settings hold diamonds in the jewelry. From time to time gently touch the stone to see if it moves. If the stone moves, don’t wear it and have a professional jeweler tighten the gem. Most jewelry stores will check you jewelry for free. Take …
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Gem in the Spotlight: Opal
…Opal is not as hard as some other gemstones, making it susceptible to scratches and damage from sharp impacts. Household chemicals and extreme temperature fluctuations can also harm opals, so gentle care is essential. To keep opal at its …though, so be careful not to submerge them in water or let them dry out too quickly. Amazingly, hydrophane opals can hold up to 20% water content. Types of Opal Black Opal : Revered for its dark gray to blackish body color, black opal is …
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The Magic of Polarized Light
… when looking at the facet junctions on a moissanite. 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 disappears; as you rotate the polarizing filter the current image disappears and the second image appears. This is because the two images are transmitted at different angles, and the …
