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Fine Jewelry University Articles matching: “Cleaning Sterling silver”
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Fine Jewelry University (Show All FJU Articles)
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The Birthstones
… chase away evil spirits and dissolve curses but only when set in gold. Care should be taken to protect peridot from scratches, sharp blows, household chemicals and extreme temperature changes. Do not use a home ultrasonic machine for cleaning. Spinel was added as one of August’s birthstones in 2016, and we think it’s a great addition. Spinel is a beautiful gem that comes in virtually every color you can imagine. It has good hardness and durability making it suitable for …
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Gem in the Spotlight: Peridot
…, sharp blows, household chemicals and extreme temperature changes. Do not use a home ultrasonic machine for cleaning. Instead, use warm soapy water and a tooth brush for at-home cleanings. If well cared for, Peridot jewelry can last …
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Gem in the Spotlight: Spinel
… healing powers related to reducing anxiety and revitalizing its wearer. The magnetic form, magnetite, is said to help bring balance and alignment to one’s internal energies calming mood swings and improving mental clarity. Care and Cleaning of Spinel Spinel is usually safe to be used in ultrasonic and steam cleaners, but certain inclusions can sometimes pose threats. The safest bet is to use warm soapy water and a soft-bristled brush. Or, you can always have your spinel …
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Gem in the Spotlight: Topaz
… is a bit harder than emerald at 7.5-8 and quartz which comes in at 7. Here are some more gemological stats for reference: Refractive index: 1.619 to 1.627 Birefringence: 0.008 to 0.010 Specific gravity: 3.53 Mohs Hardness: 8 Care and Cleaning Even though it’s tough to scratch, you should protect your topaz from hard knocks. It can be split with a single sharp blow, a trait it shares with diamond. Clean with mild dish soap; use a toothbrush to scrub behind the stone where …
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How to Value Inherited Jewelry
… minus any cost for re-cutting or re-polishing the gem if it is worn or cut in an obsolete style. Intrinsic diamond and gem prices are not readily available like precious metal prices are to the general public. The gold, platinum, and silver prices are well publicized. The diamond and gem wholesale trade keeps their prices confidential, so there can be a large difference in these prices depending on the dealer you talk to. Using this standard can lead to a value that is …
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Gold Purity and The Differences Between White and Yellow Gold
… 13.5k to be stamped 14k so the 14KP tells the consumer that this is a true 14 karat mix. White Gold Can there be other colors of gold engagement rings? Yes, Gold is yellow metal but adding copper to gold makes it redder and adding silver, zinc and any other metal makes gold paler. The white color is achieved by a careful choice of the alloying metals, which bleach the deep yellow of pure gold. It is interesting to note that white gold for engagement ring and wedding …
