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Fine Jewelry University Articles matching: “14K gold with a star”

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Fine Jewelry University (Show All FJU Articles)

  1. Blue Zircon loose gems and jewelry

    Gem in the Spotlight: Blue Zircon

    … color. But, zircon can be almost any color you can imagine including red, yellow, orange, brown, green, champagne, golden, saffron, and colorless. Zircon colors are pure and have that distinctive fire that sets it apart from other gems. … colorless, pale gray, or pale yellow variety of Zircon. Matura Diamond is another trade name for colorless Zircon. Starlite is the name for the blue gem variety of Zircon. The color of Starlite is rarely natural, and is almost always …

  2. Fake Diamonds: The Great Diamond Attack

    … a fully natural diamond from all the modern possibilities is quite demanding. So what is a real diamond? Let’s start with the older diamond look a likes, (CZ, GGG, YAG, Synthetic corundum and spinal, Glass) or simulants are quite easy to…. Apathy and sloppy observation can let one of the older lookalikes get by, but generally the profession is dealing with these well known simulants easily. The diamond tester (thermal inertia testers) is the front line in finding diamond …

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

    Gem in the Spotlight: Alexandrite

    …candle, and firelight, alexandrite appears purplish-red. This is because of how the trace element chromium interacts with alexandrite’s crystal structure. It absorbs most wavelengths of light very well, only transmitting green and red … much stronger red/orange component, the stone will appear redder. Alexandrite has a refractive index of 1.746-1.755 with an average birefringence of .010. It has a specific gravity of 3.73 and a Mohs hardness of 8.5. Because of its high …

  4. Group of loose topaz gems and topaz jewelry

    Gem in the Spotlight: Topaz

    … one person say, “I love Topaz; it reminds me of a blue sky.” Then her friend says back, “Topaz may be like a golden sunset, but not the sky.” A third friend will chime in, “You’re both crazy, it’s like a beautiful peach.” Then, a … Zabargad). Of course, topaz isn’t found there, but the island used to be a source for peridot which was confused with topaz before modern gemology. In ancient times, topaz was believed to protect its wearer. Topaz was also thought to …

  5. Unique inclusion in a lab grown diamond

    What Are Lab Grown Diamonds?

    … describe lab grown diamonds and their cousins, and not everyone uses these terms in the same way. So, let’s begin with some vocabulary. Synthetic. Understanding this term correctly is the key that unlocks this entire question. Synthetic … world, synthetic is a highly technical term. When speaking technically, synthetic gems are man-made crystals with the same crystal structure and chemical composition as the specific gem that is being created. Therefore, a “synthetic …

  6. Beautiful iolite jewelry and loose gemstones

    Gem in the Spotlight: Iolite

    … be near the top of the list. Iolite’s color range of blue, blue-violet, and violet competes for public attention with sapphire, tanzanite, and amethyst. They may have name recognition, but iolite has a rich, unique color and great gem …optical phenomenon in which a substance appears to be different colors when observed at different angles, especially with polarized light. Pleochroism is caused by differing absorption of light rays in doubly refractive crystals. Thus, no…

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

    Gem in the Spotlight: Sapphire

    … set in the Bishop’s ring as a symbol of unity between the priest, the sky and heaven. Sapphire has been associated with divine favor. The Buddhists believed that the sapphire favored devotion and spiritual enlightenment. It is the … known as ruby), but is especially popular in deep blue. Fancy colored sapphires including pink, green, orange, and golden yellow are magnificent in any jewelry. See More on Etsy › With the exception of the diamond, which measures 10 on …

  8. Jewelry solder is different than normal jewelry metals

    Jewelry Solder: What You Should Know

    … we first have to understand metal alloys. If you haven’t already, now would be a great time to read our article on gold purity . Now you should know that the metals that make up our jewelry are actually a mix of multiple different metals… gold jewelry, but the same concepts also apply to silver and platinum as well. If your ring is made out of 14 karat gold, you know that approximately 56% of it is gold with the rest being made up by a variety of different metals like …

  9. Peridot is a bright yellow-green gemstone

    Gem in the Spotlight: Peridot

    Peridot is a lovely yellow-green gem with a rich history. Legend has it that Peridot was the favorite gemstone of Cleopatra. The ancients called it the “gem … Peridot could chase away evil spirits and break curses. Some legends added that this can only happen when it set in gold. Peridots were favored by pirates, considered powerful amulets against all evil, and when set in gold, were said to … peridot could chase away evil spirits and dissolve curses but only when set in gold. Peridot is the birthstone for August. It is also the accepted anniversary gemstone for the 16th year of marriage. Peridot’s unique yellow-green color…