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Fine Jewelry University Articles matching: “crown mark”

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Fine Jewelry University (Show All FJU Articles)

  1. 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? …

  2. Collection of sapphire jewelry and loose sapphire gemstones in many colors

    Gem in the Spotlight: Sapphire

    …. It is also considered a booster for the immune system, protecting the body in general from disease. The British Crown Jewels Collection contains several sapphires. One of them, the Saint Edward’s Sapphire, is a large sapphire set in the … the Abbot of Westminster to the Royal British Treasury. The famous sapphire remains there, decorating the Imperial Crown ordered by Queen Victoria. Deriving its name from the Greek word for blue, sapphire used to refer to any blue stone. …

  3. Understanding the Diamond Buying Game

    … two could be a very poor cut (68%). Another way is both can have a 61.5% depth but diamond one has the correct crown to pavilion proportion and diamond two has a very deep pavilion and extremely thin crown. Other ways are how thick the … with the same standard. GIA and AGS use the most technical standards. EGL uses a looser grading standard, I call market grading. In addition, EGL has a franchise like business model and different EGL labs grade wildly different. Some …

  4. Old mine cut diamond example

    The History of Diamond Cuts

    … earliest and most basic of cuts. It has an octagonal girdle (the side edge of the diamond) with a table and eight crown (top part of the diamond) facets plus eight pavilion (the bottom part of the diamond) facets plus a culet (the point … to 24 facets coming to a point in the middle. But its most recognized aspect is the flat bottom. Basically, it is a crown without a pavilion. Interesting fact #2: Some diamond cuts do not have a standard number of facets. As we have just …

  5. Group of loose topaz gems and topaz jewelry

    Gem in the Spotlight: Topaz

    … 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 many years later that more modern testing identified it as a clear topaz instead. …

  6. Loose fantasy cut aquamarine

    Gem in the Spotlight: Aquamarine

    …’s main pigment comes from iron. The color spectrum of aquamarine varies from very pale blue to a deep blue, the finest specimens being the deepest in color. Most aquamarine stones have a subtle green component, and in some markets, a deep greenish blue is the most desirable. Brazil is the most prolific supplier of aquamarine where it is often found in shades of blue-green. Aquamarine has a refractive index of 1.577 to 1.583 and is doubly refractive. Aquamarine’s …

  7. A pile of scrap yellow gold jewelry

    Gold Purity and The Differences Between White and Yellow Gold

    …with gold. A plated piece of jewelry has a thin layer of gold over a base or non gold metal. Some plated jewelry has markings that look like real solid gold. For example, a plated piece can be stamped: 14k HGE or 18k GE. HGE means …. You can learn more about gold plating on our FAQ page. Sometimes engagement rings are stamped 14KP. The 14KP is a marking for plum gold which is a true mix of 14 karat gold. Some governments allow 13.5k to be stamped 14k so the 14KP …

  8. Retipping is an important jewelry repair technique

    Jewelry Repair FAQ

    … that only a very thin layer of gold covers the surface. Gold plating produces a layer of gold around 0.5 microns thick. A micron is roughly equal to 4/100,000 or 0.00004 inches. Gold plated jewelry is often indicated with a “GP” marking stamped somewhere on the piece. Heavy Gold Electroplating is gold plating with a minimum thickness of 2.5 microns. Look for an “HGE” stamped on the jewelry to indicate that it is Heavy Gold Electroplated. On the other hand, gold …

  9. Alternative metal wedding band options for men

    Alternative Metals for Men’s Jewelry

    … silver-white in color, but it can be treated to different colors. Titanium is very light weight which is its hallmark feature and one of the reasons it is used so heavily in manufacturing. It resists scratching well, and it is both …, it is difficult and expensive to resize, repair, or engrave aircraft grade titanium rings, again because of the remarkable properties of the alloy. This may or may not be an issue for you depending on who you buy your titanium ring from…

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