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Fine Jewelry University Articles matching: “pure platinum”

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Fine Jewelry University (Show All FJU Articles)

  1. Morganite is a beautiful soft-pink gemstone

    Gem in the Spotlight: Morganite

    … it from other pink gemstones. Morganite is commonly heat treated to remove yellow and orange hues and to achieve a purely pink stone. This type of enhancement has an excellent stability rating, and the stone requires no special treatment…As you may know, the most important factor in determining the value of a colored gemstone is: color. Morganite of a pure, medium pink color is the most valuable. If the pink color is too light the stone often looks washed out and if the …

  2. Alternative metal wedding band options for men

    Alternative Metals for Men’s Jewelry

    … very recently, men only had a handful of choices when choosing a metal for their wedding band. Gold, silver, and platinum are all excellent metals which make great wedding bands, but with the advent of new technologies the “big three” have … it an outstanding ring to wear every day. Tungsten Tungsten carbide jewelry has a nice weight to it like gold and platinum, but it is much more affordable. Tungsten carbide bands are extremely scratch resistant. Tungsten does not bend out of…

  3. Get more cash for your gold and jewelry from Arden Jewelers

    How to Sell Your Jewelry

    … of Jesus. Damaged beyond repair jewelry is bought at its intrinsic worth. The intrinsic value is the metal (gold, platinum, silver) price plus any gems. The refining process used to recover the metal utilizes strong chemicals and has strict …(can be in ounces, pennyweights or grams) . The purity is the karat of gold or percentage of noble metal (gold, platinum, silver). 24 karat is pure. 10 karat is 10/24 or .410 gold and the balance of weight is the alloys. 14 karat is 14/24 or…

  4. Early attempts at making lab grown diamonds

    How Are Lab Grown Diamonds Made?

    … over 1.5 million pounds per square inch and temperature above 2,000 degrees Celsius. In this environment, the pure carbon melts and begins to form into a diamond around the starter seed. On December 16, 1954, a belt press was used to …plasma using microwaves, lasers, or other techniques. The ionization breaks the molecular bonds in the gases and the pure carbon adheres to the diamond seed and slowly builds up into a crystal, atom by atom, layer by layer. The CVD …

  5. A group of art deco and art nouveau rings together

    Art Deco vs. Art Nouveau Style Jewelry

    … were not just adornments but works of art. Many Art Nouveau jewelry pieces were made in silver, but white gold and platinum were quite common as well. The diamonds used in Art Nouveau jewelry were typically Old Mine cuts, but Old European …embraced symmetry, bold colors, and streamlined forms influenced by Cubism and the Machine Age. Precious metals like platinum and white gold alongside rare and valuable gemstones such as diamonds, emeralds, and sapphires, were the materials …

  6. Brands and Designer Jewelry

    …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 & Co., Rolex…

  7. Lab grown synthetic diamond Type IIa tester with diamond

    How to Tell If a Diamond Is Natural or Lab Grown

    …there are some tools available to help us do this. One of the best indicators of whether a diamond is lab grown is whether or not it is a Type IIa diamond. Type IIa is actually a gemological variant of the diamond that relates to how pure the carbon is that makes up the diamond. In nature, less than 2% of all diamonds are Type IIa, however, most gem quality lab grown diamonds are Type IIa. So, if a diamond is Type IIa, that’s a pretty good indication that it is lab …

  8. Measuring Gold Weight

    … wrong. There is more trivia about gold weights. The troy system historically was used for measuring the weight of drugs, precious metals and gemstones. The name comes from the French city of Troyes. The noble metals (gold, silver and platinum) all use the troy system. A troy ounce is 20 pennyweights. The pennyweight was the weight of a silver penny in medieval England. When pennies were introduced in England in the 8th century, their original weight is believed to have …

  9. Group of loose topaz gems and topaz jewelry

    Gem in the Spotlight: Topaz

    …in, “You’re both crazy, it’s like a beautiful peach.” Then, a passerby contributes, “You all are nuts, it’s like a rainbow with all the colors at once.” And of course, all of them are right. History and Lore Topaz in its pure form is naturally colorless, clear like a diamond. The famous “Braganza Diamond” was thought to be the largest diamond ever found (prior to the Cullinan Diamond) at 1,680 carats and was set in the Portuguese crown jewels as such. It wasn’t until …