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Fine Jewelry University Articles matching: “Quartz gold”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Spinel
… like us. Spinel can be stored with other jewelry but like with all precious stones, it should be treated and stored with care. Its Mohs hardness of 8 puts it on par with Topaz. It’s softer than diamond or sapphire but harder than quartz, tourmaline, and peridot. With proper care there’s no reason why a piece of spinel jewelry can’t last for generations even becoming a treasured family heirloom. Why Spinel? Despite its long history spinel is relatively new to jewelry in …
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Gem in the Spotlight: Emerald
…. Emerald’s Mohs hardness rating is 7.5-8 making it softer than sapphire and harder than amethyst and other quartz varieties. The refractive index of emerald ranges from 1.57 to 1.58, making it a moderately refractive gemstone. Its specific…and Mrs. O. Roy Chalk in 1972 and can be seen on display at the National Museum of Natural History in a platinum and gold ring surrounded by 60 pear-shaped diamonds. According to workers at the Muzo mine in Columbia, it is one of the …
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Jewelry Repair FAQ
… becomes at risk of falling out of the mounting. Retipping is the process of adding a small amount of metal (usually gold or platinum) to the top of worn down prongs to keep the gemstone secure. In the past, almost all gemstones had to … welder in the hands of our skilled craftsmen there is a good chance we will be able to repair your jewelry. What is Gold Plating? Gold plating is the process of depositing a thin layer of gold onto the surface of jewelry. This is done by…
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Gem in the Spotlight: Peridot
…gem of the sun”. It was believed that peridot could chase away evil spirits and dissolve curses but only when set in gold. Peridot is the birthstone for August. It is also the accepted anniversary gemstone for the 16th year of marriage. … Peridot could chase away evil spirits and break curses. Some legends added that this can only happen when it set in gold. Peridots were favored by pirates, considered powerful amulets against all evil, and when set in gold, were said to …
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Gem in the Spotlight: Opal
… the fragile piece of opal to it before cutting and leaving them glued together after the fact to be set into jewelry. In triplets, that thin piece of opal is sandwiched between a piece of onyx and a clear piece of laboratory grown quartz (the same material that is commonly used for watch crystals). This helps show off the opal’s beauty while keeping it safe and strong. Doublets and triplets are much less expensive than other forms of opals because you only need a paper …
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Caring for and Cleaning Your Jewelry
… use chlorine or products that contains it. Don’t use a hard toothbrush because they tend to scratch the metals (gold, platinum, etc.). Abrasive cleaners and toothpaste or toothpowder will also scratch the metals. This will take away the …Hardness is related to the Mohs hardness scale. Diamond is the hardest at 10. Talc is listed as 1 the softest. Pure gold (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…
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Platinum
… treasures are set in platinum, such as the Hope Diamond. It is also one of the heaviest, weighing 60% more than gold. The word platinum sometimes enjoys a cachet higher even than gold – witness all those platinum albums and credit cards…named it contemptuously platina (little silver) and threw it back into the river to ripen into silver. In 1912 white gold was “invented” in Pforzheim, Germany, as a substitute for platinum. These properties piqued the interest of a …
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Brands and Designer Jewelry
… brand jewelry must keep its promise to the customer to deliver a superior product. This is a no compromise area. The jewelry must meet the most stringent of quality standards. Jewelry brands must use quality metals (like high-karat gold and platinum), first-rate gems, and highly skilled jewelers to meet their obligation. Status When a jewelry brand reaches a level of excellence in style and quality of workmanship it attains a level of status. Brands like Tiffany & …
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How to Sell Your Jewelry
…are unsure of how to clean the jewelry or gem, let the professionals do it. Here are some cleaning tips. Never clean gold and gems in chlorine. Ammonia based cleaning products are used throughout the jewelry industry, but they can damage … toothbrush, then rinse thoroughly for most jewelry. A hard toothbrush and toothpaste or toothpowder will scratch gold and hurt some gems. The best cleaning tip is to know for certain the best cleaners to use on your jewelry and do it …
