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Fine Jewelry University Articles matching: “18kt fl”
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Fine Jewelry University (Show All FJU Articles)
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The Magic of Polarized Light
… light. In the gemological world, this would be any light source that we use on a regular basis (e.g. overhead reflected light or a daylight equivalent fluorescent light source). Polarized light, on the other hand, has all of the … of this in nature is sunlight reflecting off of the water. When the light bounces off of the surface, that reflected light is partially polarized. This is because some of the rays pass through the water, and some of them reflect. In a …
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What Are Lab Grown Diamonds?
… nature made a given gem. Lab grown diamonds, on the other hand, are made in a controlled environment. They have signs of a regulated process that is not like nature. Furthermore, human efforts are not perfect and they leave their own flaws and clues that humans made a given gem. The types of inclusions and subtle variations in crystal structure are one of the main ways to differentiate between lab grown and natural diamonds. You can also learn more about how to tell …
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Caring for and Cleaning Your Jewelry
How to Clean Jewelry A diamond’s spectacular beauty is due to its light show. Diamonds make light reflect, show its many colors, and dazzle. To perform its magic the diamond must be clean. Diamonds are grease magnets. … solutions that contain oil as they will spot and dull the stone. For hard spots you can use toothpicks and dental floss. Be careful not to scratch the metal or lift the prongs. A final wipe with a lint-free cloth will remove any dust …
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Gem in the Spotlight: Opal
…, 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 luminous best, wiping it clean with a … body color, many of these stones have little to no play of color. The best stones have strong greens and blues that flash through the orange body color. Boulder Opal: Boulder opals are gem opal material that still incorporates some of …
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Jewelry Repair FAQ
… for an “HGE” stamped on the jewelry to indicate that it is Heavy Gold Electroplated. On the other hand, gold flashing (or washing) is thinner than standard gold plating. Gold flashing is only about 0.175 microns (or 0.000005 inches) … you can do is to gently prod the diamond or gemstone with a pen cap to see if you can detect any movement. The reflection of the facets and make this movement difficult to see, but if you think you hear a rattle, try pushing on the …
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Types of Necklace Chains
…easily be worn on their own or layered with other chains. They are also a great option for pendants because they are flexible and don’t often snag the pendant bail. They are also relatively strong to support the weight of a pendant … chains make a good base for charm bracelets. PROS Wearability – The simple design of cable chains makes them very flexible and nearly impossible to kink. Serviceability – They are probably the easiest chain style to maintain and repair…
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Anatomy of a Ring
… rest of the ring without using a separate part. These designs can use a combination of prongs, channels, beads, or flush setting to hold the center stone in place. The important thing to note here is that the stone must be set somehow… know, it’s a cathedral ring. Cathedrals integrate the center top of the ring with the rest of the design creating a flowing line in contrast to simple solitaire rings which leave the center stone hovering in space above the ring shank…
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Gem in the Spotlight: Aquamarine
… but this tiara she special ordered from Garrard in 1957. The Gemology of Aquamarine Like emerald, aquamarine is a member of the beryl family (along with morganite, heliodor, and others). Unlike emerald, it is frequently free of flaws and often occurs in large crystals. Aquamarine’s main pigment comes from iron. The color spectrum of aquamarine varies from very pale blue to a deep blue, the finest specimens being the deepest in color. Most aquamarine stones have a …
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The Difference Between White Gold and Platinum
… to 5 times more than white gold. Why? Platinum has a higher noble metal percentage in jewelry. Platinum is harder to work with than white gold. The higher melting temperature makes it more difficult to cast. The platinum solders also flow at higher temperatures. These and other reason make platinum more expensive to work with than white gold. So, the labor cost of platinum jewelry is more also. Want to see some real-life jewelry in these different metals? You can …
