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Fine Jewelry University Articles matching: “Loose gems”
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Fine Jewelry University (Show All FJU Articles)
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Types of Jewelry Clasps
…. This is one of the reasons why they are often used on bracelets. CONS Longevity – The tongue (insert) can become loose over time and will need to be adjusted. If the tongue is made out of silver this can happen quite quickly. … clasps, a fold over is only as strong as the tension in the metal that holds it in place. Over time the clasp can loosen and need to be adjusted. Also, like box clasps, this loosening happens much faster with softer metals like sterling …
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Gem in the Spotlight: Iolite
… was once known as a “water sapphire”. Dichroite is another synonym for iolite. Dichroite is a Greek word which loosely translates as two-colored rock. This refers to iolite’s pleochroic nature. iolite cannot be heat treated to enhance its…Iolite is maybe not the first gemstone people think of for their blue-violet jewelry, but it should be near the top of the list. Iolite’s color range …’s name comes from its violet color. It is from the Greek word “ios” meaning violet. Unlike many other popular gems, iolite cannot be heat treated to enhance its color. The color you see is the natural color of the stone when it was first…
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Gem in the Spotlight: Pearl
… occasions to help them last. Restring Often: Even following all of these rules most pearl strands will stretch, loosen, and discolor over time. We recommend that you have your strand checked once a year. If the silk thread is starting to … of years. Only more recently have cultured pearl farming techniques been introduced that have made these incredible gems more widely accessible. The La Peregrina pearl is one of the most famous natural pearls in the world, and it has a …
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Gem in the Spotlight: Opal
… same stone). Gemology of Opal Opal’s captivating dance of colors is a result of its unique internal structure. This gemstone is composed of tiny silica spheres arranged in a pattern, which diffract light and create the spectacular play … opal”. Opal has a refractive index of 1.37 – 1.47 and a Mohs hardness of 5.5-6. This makes it one of the softest gemstones commonly used in jewelry. For reference, here are the Mohs hardness values for some other gemstones you may know: …
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Fake Diamonds: The Great Diamond Attack
… and major diamond suppliers have sophisticated equipment in place to help them catch these impostors before they reach the marketplace. If you’re interested you can learn more about how to tell if a diamond is lab grown . Synthetic gems are not new to the jewelry profession. Synthetic colored stones have been around for over a 100 years. The impact was dramatic in the beginning then adjustments were made and the new gem found it place. Lab grown diamonds are now …
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Gem in the Spotlight: Aquamarine
…, aquamarine was believed to guarantee a happy marriage and inspire mutual fidelity in newlyweds. Notable Aquamarine Gemstones The largest gem-quality aquamarine gemstone ever mined was 19 inches long. The largest cut aquamarine is named … that the stone is not damaged. Caring For and Cleaning Aquamarine To maintain the brilliance of this beautiful gemstone, it should be immersed in jewelry cleaner or in lukewarm soapy water and cleaned with a small bristle brush. Don’t …
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The Birthstones
… midst of cold, white (valley fog) and at times stark surroundings are rewarded with one of the most varying birth gemstones, Garnet. Garnet’s pizzazz energizes the gloomiest day. Garnet varieties brighten the world in colors of yellow to…was considered to be a strong antidote against drunkenness, which is why wine goblets were often carved from it! The gemstone still symbolizes sobriety. The Amethyst was credited with many other extraordinary attributes. Among its reputed…
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Gem in the Spotlight: Topaz
… variety, while colorless topaz is often the least expensive. The modern era has given us many new advances in gems. One of the biggest is blue topaz. Gem suppliers use a neutron bombardment method in a nuclear reactor to produce the …, to violet, to green. These coatings can allow topaz to be any color of your preference. Topaz itself is a hard gemstone with a Mohs hardness of 8. Mohs hardness is a standardized metric of how difficult it is to scratch something. For …
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Gem in the Spotlight: Amethyst
… as hard as tourmaline, softer than sapphire and topaz, and harder than opal and tanzanite. This makes it a durable gemstone that is resistant to scratching and chipping. It is also resistant to heat and chemicals which means that it can … tears of wine in remorse for his actions. These tears stained the quartz purple, resulting in the creation of the gemstone known as amethyst. Amethyst has a long history of being used in jewelry and other decorative items. It was highly …
