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Fine Jewelry University Articles matching: “25 cushion lab”

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Fine Jewelry University (Show All FJU Articles)

  1. A collection of jade jewelry and loose gems

    Gem in the Spotlight: Jade

    … a big impact on how gems are worn and what they can handle. We all know diamonds are the hardest gem commonly available on earth. If you scraped them together, a diamond would scratch a piece of jade while the much softer jade wouldn’t … the years are chrysoprase, serpentine, maw sit sit, and hydrogrossular garnet. For a short amount of time, a few laboratories produced synthetic (lab-created) jadeite. This proved to be unprofitable and was quickly forgotten; however, a…

  2. Group of loose topaz gems and topaz jewelry

    Gem in the Spotlight: Topaz

    …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 … used to put coatings on lenses for glasses and cameras. It is also one of the processes that is used to create lab grown diamonds . A thin, multi-colored film is bonded on the surface of colorless topaz to create all the colors you see …

  3. A group of alexandrite jewelyr and loose gems shown in different light to demonstrate color change

    Gem in the Spotlight: Alexandrite

    …) making it a great gift for that special someone with a birthday in June. Alexandrite is perfect for someone who wants the best of the best with a rare twist. One final note: while alexandrite in its natural form is expensive, its lab-created counterpart is very affordable. So no matter the occasion or budget, our gemologists will be able to find the right stone for you. Contact us today to get

  4. Frequently Asked Question about Jewelry

    … advancements in the field. The pace of change in the gem industry is staggering. What is Moissanite? Moissanite is lab-created silicon carbide. It has become an excellent diamond imitation since it gives a positive reading on a thermal … between a Diamond Certificate and an Appraisal? A Diamond Certificate is a document issued by a Gemological Laboratory describing a Loose Diamond. The laboratory will not issue certificates on Diamonds which are set in a mounting. A …

  5. Group of loose emerald gemstones

    Gem in the Spotlight: Emerald

    … add character and uniqueness to the stone. At this point in history, almost every emerald has had some level of treatment 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 across an emerald that has a reputable gem report that says it hasn’t been fracture filled, you have come across …

  6. See the Star White Gold difference

    Star White Gold

    … white gold has been developed with the consumer in mind since some people who enjoy the high fashion look of white may 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 American Assay & Gemological Office, a division of BAO Technical Services Ltd., the most authoritative testing source…

  7. Opal Rings With Loose Opal Gemstones

    Gem in the Spotlight: Opal

    … black onyx and glue 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 …

  8. Old mine cut diamond example

    The History of Diamond Cuts

    … many variations. A 3 facet rose cut looks a lot different than a 24 facet rose cut. Some cuts can vary by multiple facets and still be considered properly cut. With other cuts even changing 1 facet would result in the diamond being labeled a miss-cut (often causing it to be sold at a discounted price). It just depends on the type of cut and where the deviation from the “standard” facet pattern is. The next important diamond cut is the French cut. The French cut is a …

  9. A White Gold band next to a Platinum band

    The Difference Between White Gold and Platinum

    …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 …

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