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Fine Jewelry University Articles matching: “Manufacturers mark”

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Fine Jewelry University (Show All FJU Articles)

  1. Lab grown synthetic diamond Type IIa tester with diamond

    How to Tell If a Diamond Is Natural or Lab Grown

    … diamonds that are sold as natural diamonds. But, it is important to know that the majority of lab grown diamond manufacturers are perfectly legitimate and honest organizations that are upfront about their products. Some even laser inscribe all of… recently added to our own gem lab. This incredible machine is used by some of the world’s top gem labs and jewelry manufacturers daily, and it has already helped us catch undisclosed lab grown diamonds. It does not suffer from many of the …

  2. Purple peace sign

    How to Sell Jewelry on Craigslist and Facebook Marketplace

    Selling jewelry on Craigslist, Facebook Marketplace, and other online local classified sites is a great way to get cash for your jewelry, but there are some …’t have a way to meet the potential buyer at a public place, then do not sell your jewelry through the Craigslist or Marketplace. The buyer’s bank is a good public location because if they wish to buy the jewelry they can go and get the … method. Checks of all kinds (personal, cashiers checks, money orders, etc.) can be fakes. If you are on Facebook Marketplace, check the profile of the potential buyer. Is it a brand new profile with an obviously generic or fake image? …

  3. A White Gold band next to a Platinum band

    The Difference Between White Gold and Platinum

    …ruthenium is often used as a hardener alloy. Platinum is usually marked with .900 or .950 to mark its fineness. Some manufacturers state what alloy they are using like 90% Platinum 10% Iridium. How white gold and platinum start out is one of the …

  4. See the Star White Gold difference

    Star White Gold

    …. Regular, Plus, or Premium? The White Gold Task Force statement on the plating of white gold reveals how jewelry manufacturers view rhodium plating: “The lack of an industry-accepted definition of white as applied to white gold has been a problem… only see white gold with the plating on it and assume that is its true color. Most of them don’t know that jewelry manufacturers choose the white gold alloy mix. It is much cheaper to use the standard white gold alloy (again standard is the …

  5. Evaluating inherited estate jewelry can be tricky

    How to Value Inherited Jewelry

    …, jewelry value is not one set number. It changes with the situation (who is buying, and who is selling) and the marketplace (global economy, commodity prices, local jewelry market, etc.). And, it changes with time and styles. …value of an item could be $1,000 given one set of conditions, but in a certain area, given the way it was put out to market, the condition of the item, the photo in the ad, and a million more factors the seller may only find a buyer … different types of appraisals . The replacement value insurance appraisal has the least correlation to the actual market value of the jewelry item. So, even though insurance appraisals are commonly available, this would be the least …

  6. A single platinum wedding band

    Platinum

    … of the metal and none of its volume is lost. In addition to its strength and density, platinum has another remarkable quality – pliability. Platinum is a symbol of true love, purity, rarity and strength. These qualities of platinum are … white luster. This helps to reflect the true radiance of diamonds. In the United States platinum is usually marked: PT or PLAT. In Europe, platinum is identified by the following marks: 950 or PT950. The History of Platinum in Jewelry …

  7. A computer rendering of a fake diamond

    Fake Diamonds: The Great Diamond Attack

    … to justify using them. The technology is becoming more cost effective, and some synthetic diamonds are entering the market place now. Since they are the same chemistry as natural diamond, there is no easy test to use to separate them … 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 …

  8. A group of tanzanite loose gems and rings

    Gem in the Spotlight: Tanzanite

    … amount of blue in a tanzanite is caused by the quantity of vanadium present. Raw, unheated tanzanite is sometimes marketed as “mermaid tanzanite” because of the iridescent blue and green colors. You can usually tell if a tanzanite has …VP of Tiffany & Co. at the time, who named the stone tanzanite after the country of origin. Tiffany then started marketing the stone around 1968. The geological conditions required to form tanzanite are quite rare, leading some …

  9. Single white round pearl on white background

    Gem in the Spotlight: Pearl

    …. Natural pearls grow in the wild without human intervention. They are very rare, and most natural pearls on the market today are antique. They can take years, even decades, to form, and are found only in a few select locations around the… who believed it to be a talisman of good luck. Types of Pearls There is a huge variety of pearls available on the market today. This section will give you just a small sampling of the different kinds of pearls that you may run into. …