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Fine Jewelry University Articles matching: “Value of black pearls natural”

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Fine Jewelry University (Show All FJU Articles)

  1. Collection of loose and mounted quartz gems of various types

    Gem in the Spotlight: Quartz

    … and sometimes unattainably expensive? If you answered quartz to all these questions you would be right (but naturally you looked at the title and knew). Quartz is one of the most common minerals on earth. Many quartz varieties are cut into … is the “Berns Quartz,” named after the donors that donated it to the Smithsonian’s National Museum of Natural History. It is an 8,000 pound (yes you read that correctly) slab of natural clear quartz and is one of the largest clusters ever …

  2. A computer rendering of a fake diamond

    Fake Diamonds: The Great Diamond Attack

    … lookalikes. “What is a real diamond?” is a difficult question these days. And the problem of separating a fully natural diamond from all the modern possibilities is quite demanding. So what is a real diamond? Let’s start with the older … but is man made. So, a synthetic diamond is the same chemistry (carbon element) and crystal structure (cubic) as natural diamond but made in a factory. Yes, they can make synthetic diamonds and have for many years now. Most are used in the …

  3. Learn Secret Diamond Buying Skills From a Professional Diamond Buyer

    …If there are any magic moments in life, that is one. Nothing expresses love and commitment like a diamond. This rare natural stone’s history and lore of romance makes all who receive one the center of their universe. A diamond’s beauty … show unique in the gem world. Diamonds are unique, just like the love it expresses, but unlike love we must put a value on a diamond. Understanding the 4 C’s of Diamonds The value factors of a diamond are like anything else, supply and …

  4. Group of loose spinel gemstones with finished jewelry

    Gem in the Spotlight: Spinel

    … by mistake. Since then many processes have been used and perfected to create spinel in even more colors than it is naturally found in. Because of how easily it can be created in a lab, synthetic spinel has been used to imitate many other ….). In fact, the ubiquity of synthetic spinel may be part of the reason why most people have been slow to appreciate natural spinel in its own right. Interestingly, most lab-created spinel has a slightly higher refractive index than natural

  5. The Birthstones

    … is the product of an oyster’s defense mechanism. When a foreign irritant is introduced either by man (cultured) or naturally, the oyster immediately surrounds it with layers of a substance called nacre. Pearls form directly from the hand of… and loyal friendship. Learn more about Emerald June’s Birthstone: Pearl (Moonstone, Alexandrite, Rhodolite Garnet) Pearls are often associated with love and tears, they were dedicated to Aphrodite, the Greek goddess of love, and symbolized…

  6. Old mine cut diamond example

    The History of Diamond Cuts

    … to change their shape. So, the Romans wore uncut diamonds. One of diamond’s remarkable attributes is that the natural diamond crystal is beautiful without any human modification. Diamonds normally form in the octahedral shape which looks … like two pyramids stuck together at the base. Naturally, the first attempts to enhance diamonds were to polish the natural gem. The “point cut” is the polishing of a natural octahedral diamond. Interesting fact #1 about diamond cuts: …

  7. Group of loose emerald gemstones

    Gem in the Spotlight: Emerald

    … is a treatment to the stone that makes the fractures less visible. There are many ways to do this with oiling, natural resin, synthetic resin, silicone, and epoxy being the most. The basic technique involves submerging the stone in the …donated to the Smithsonian by Mr. and Mrs. O. Roy Chalk in 1972 and can be seen on display at the National Museum of Natural History in a platinum and gold ring surrounded by 60 pear-shaped diamonds. According to workers at the Muzo mine in …

  8. Frequently Asked Question about Jewelry

    …. They are making the diamonds both more transparent (whiter) and more colorful. Some colors are more vibrant then natural diamonds. Next, some are changing the clarity of diamonds with laser drill and fills. The new fills are getting harder… on the diamond. Color is actually looking for the absence of color or transparency. Clarity is inclusions and natural birthmarks of a diamond and is useful as identifying characteristics. For more information see the Diamond Buying Guide . …

  9. Synthetic Gems: The Whole Story

    … gemologist to detect. But if you had gem material that is the same chemically, optically and crystal structure as a natural gem, it would be very hard to tell them apart. In gemology we call this a synthetic gem. Synthetic gems are not bad…a man made synthetic ruby has the same exact chemical formula and crystal structure and optical characteristics as a natural ruby. How can a person tell them apart? I will tell you it is very very hard. It takes a lot of training, very good …

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