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Fine Jewelry University Articles matching: “Antique hallmark number 2”
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Fine Jewelry University (Show All FJU Articles)
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Laser Jewelry Repair
… too costly to fix. Now Arden Jewelers has a powerful laser to repair our customer’s jewelry. Lasers can repair an antique enameled pin without damaging the enamel or leaving visible signs of the restoration work. Our laser can fix jewelry … flowing into the hinge and destroying its mobility. Antique filigree that is broken can be repaired. Restoring antique platinum jewelry is now possible with Arden Jewelers’ laser. The laser can also help Angelo create very complicated …
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How to Sell Jewelry on Craigslist and Facebook Marketplace
…. Check in with that person after the meeting. Always have your cell phone with you. If you decide to give a phone number in the ad, use your cell number and not a home phone number. That way, when someone calls you, you get a call back …you can get cash on the spot for your gold and jewelry. Our gemologist buyers are friendly and professional, and our 20+ year track record in Sacramento means you know you’re getting a great deal from a safe and reputable jeweler
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Alternative Metals for Men’s Jewelry
… silver-white in color, but it can be treated to different colors. Titanium is very light weight which is its hallmark feature and one of the reasons it is used so heavily in manufacturing. It resists scratching well, and it is both …Arden Jewelers are made from aircraft grade 5 titanium. Titanium is a chemical element with the symbol Ti and atomic number 22. It is resistant to corrosion in sea water and chlorine. Titanium is named after the Titans, mythical Greek …
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Caring for and Cleaning Your Jewelry
… been treated, some precautions should be taken. Hardness is how we judge how easily things scratch. Some technical numbers show how a higher number scratches the same number and anything lower. Hardness is related to the Mohs hardness … (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 shows why jewelry metals get scratched by things like hard toothbrushes and dirt (most dirt ranges 4-8 on the …
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Gem in the Spotlight: Tourmaline
…unlike emerald and aquamarine, for example, which are members of the beryl family). It has a refractive index of 1.624 to 1.644 and a Mohs hardness of 7 to 7.5 which makes it softer than topaz or sapphire and harder than tanzanite or … a long trend of confusing tourmaline with other gems. Another notable example of this is the “Caesars Ruby,” the 255ct stone in the Russian crown jewels that has been traded between France, Russia, and Sweden for centuries. It was …
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What are “Blood Diamonds”?
… of the decisions of the Security Council.” These diamonds are sometimes referred to as “blood diamonds.” In July 2000, the global diamond industry made clear to the international community its zero tolerance policy towards conflict … Partnership Africa Canada to create the Kimberley Process Certification System. This system was formally adopted in 2003 and guards against conflict diamonds entering the legitimate diamond supply chain. The diamond industry also …
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Types of Jewelry Clasps
…, spring-loaded mechanism that snaps shut to secure the jewelry. Other types of jewelry clasps that emerged in the 20th century include the lobster clasp, which features a spring-loaded mechanism that opens and closes by pressing a … virtue of the strength of the wire to hold its curved shape alone. S hooks usually work best in higher karat gold (21k and higher) because they are more malleable and don’t get brittle over time as easily. Unsurprisingly, one common …
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Gem in the Spotlight: Quartz
… refractive index at 1.54-1.55 and is doubly refractive. It has a vitreous polish luster and its specific gravity is 2.66 (may vary based on inclusions). In addition to its beauty, quartz is also an extremely useful stone due to its … likewise, when induced with an electrical charge, the crystal will vibrate at a very precise interval of exactly 32,768 vibrations/second or ~32kHz. This property is utilized in various electronic devices such as quartz watches and …
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Gem in the Spotlight: Tanzanite
…its desirability. Tanzanite is currently one of the rarest gemstones, and it is only found in one place on earth. In 2002 tanzanite was added as one of the birthstones for December alongside blue zircon, turquoise, and blue topaz. …Tanzanite is the largest rough tanzanite in the world, weighing around 6 pounds (over 13,000 carats!). Discovered in 2005, it has dimensions of 218.44x 80.01 x 71.12 mm. Its name is inspired by the second-highest peak of Mount …. As if the amazing color of tanzanite wasn’t enough incentive to collect them, there is more to the story. In 2019, the Tanzanian government closed the only large-scale tanzanite mine in the world. There are a few smaller-scale mines …
