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Fine Jewelry University Articles matching: “Lab created sapphire”
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Fine Jewelry University (Show All FJU Articles)
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Laser Jewelry Repair
… spots. The work is so smooth that even an expert can’t detect the repair work once it is polished. The weld joints created by the laser are stronger than traditional solder. The laser uses extremely focused heat and the weld can be …
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Gem in the Spotlight: Topaz
… difficult it is to scratch something. For reference, topaz is a bit softer than diamond which is a 10 and corundum (sapphire/ruby) which is a 9 on the scale. It is a bit harder than emerald at 7.5-8 and quartz which comes in at 7. Here are …if more orange). Smokey Topaz: Brownish grey color. Blue Topaz: The most common color. A full range of shades is available from light Sky Blue to dark London Blue. Topaz is also found in less commonly known colors like green, pink, and …
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Gem in the Spotlight: Emerald
… of chromium and vanadium in the crystal structure. 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 … to make the fractures less visible. It is so common that if the stone doesn’t have a report from a reputable lab (like GIA) saying otherwise, it is assumed that it has been treated with some level of fracture filling. If you do come …
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Synthetic Gems: The Whole Story
Ruby, sapphire, emerald and alexandrite are very beautiful gems and very rare in their stunning beauty. These four gems have been … thousands of years. But, what if anyone could own them? At gem shows and museums, I have seen jaw dropping rubies, sapphires and emeralds. These gems in high quality have put ownership beyond most people to justify the price. Just a one …to positively identify as synthetic. Both, I feel, are impossible to identify in a piece of jewelry. Synthetic ruby, sapphire, alexandrite and emerald are very complex because there are different ways to make them. The inexpensive way to make…
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Gem in the Spotlight: Iolite
…near the top of the list. Iolite’s color range of blue, blue-violet, and violet competes for public attention with sapphire, tanzanite, and amethyst. They may have name recognition, but iolite has a rich, unique color and great gem value on …. The Gemology of Iolite Iolite is the gem variety of the mineral Cordierite. 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 …
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Jewelry Repair FAQ
… way it did before a gemstone fell out; who wouldn’t? That’s why we have literally 100s of carats of loose diamonds, sapphires, rubies, opals, pearls, and more in all shapes and sizes to choose from when selecting a replacement stone for …by the jeweler’s torch. However, with our laser welder we are able to retip prongs next to many gemstones (diamonds, sapphires, and rubies for example) without removing them, saving you time and money. Can my costume and fashion jewelry be …
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Star White Gold
…generally three grades of gasoline, regular (really the lowest), mid grade, and premium. In addition, not all gas is created equally. We have all had the experience of poor performance due to poorly made gas. White gold also has three grades… have sensitivity to the nickel in white gold. Star white gold has been evaluated by a leading independent testing laboratory. The Star White gold family of alloys does not require rhodium plating. They have been color tested by the …
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Anatomy of a Ring
… also adds a degree of security to the center stone as the arches can protect it from some side impacts. It also creates a difficult to clean area on the underside of the cathedral arches that can build up with dirt over time. We created an entire video on cathedral rings which you can checkout if you are interested in learning more about them. Halo Halo rings have been very popular for sometime and so you may be familiar with this one already. The “halo” refers to the …
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The Difference Between White Gold and Platinum
Do you prefer learning from videos? We created an in-depth video on the differences between white gold and platinum which you may like. The first difference …white, and does not need to be rhodium plated. This new alloy is called Star White Gold . It is still not widely available, so these paragraphs still apply to most jewelry, but Star White is different. Learn more… White gold is an … 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 always …
