Warning: You appear to be using an obsolete browser, and soon you may not be able to access our website. We strongly recommend that you upgrade your browser as soon as possible.

Search Results

Fine Jewelry University Articles matching: “blue stone with a star”

Showing only FJU Article results. Click here to show all results.

Fine Jewelry University (Show All FJU Articles)

  1. Blue Zircon loose gems and jewelry

    Gem in the Spotlight: Blue Zircon

    Zircon may be last in the alphabet of gemstones, but it is first in sparkle. The crystal structure of zircon creates one of the liveliest displays found in any … other colored gems? Zircon has a high refractive index (1.92-2.01). The refractive index (abbreviated RI) of a gemstone is its optical property that refers to the ratio of the speed of light in a vacuum to the speed of light through a … is also of interest to geologists because it is one of the oldest minerals on earth. In the gem world, a type of stone is often given different names for each of its colors, and Zircon is no exception. Here are examples of a few of them. …

  2. See the Star White Gold difference

    Star White Gold

    … keeps the promise of white gold. The bright clean style of Star White gold will enhance the look of diamonds and gemstones. Star White jewelry will last a very long time with a clean pure white gold look. Your prestigious White jewelry … gold is bright. White gold has a pure reflexive look. White gold is white…or is it? White gold can be compared with gasoline. There are generally three grades of gasoline, regular (really the lowest), mid grade, and premium. In …

  3. The Difference Between White Gold and Platinum

    … basic and is the foundation of all the other differences. White gold and platinum are different metals. White gold starts out as gold. Gold is yellow. Platinum is itself a white metal. White gold and platinum have their own properties … by a careful choice of the alloying metals, which bleach the deep yellow of pure gold. The amount of alloy mixed with gold is called its karat. The key to understanding gold karat is the karat value over 24. An example is a 14-karat gold…

  4. Nickel in jewelry can cause allergic reactions

    What to Do When Your Ring Irritates Your Skin

    …. We do custom jewelry design , and one of our favorite projects is to take the raw materials (gold, diamonds, gemstones, etc.) from a client’s existing ring and use them to make a new and exciting creation. We can reuse the diamonds and … ring or other jewelry because it irritates your skin. Don’t worry. There are many options you have when faced with this problem. The first step is to try to determine what the cause of the irritation is. There are actually several …

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

    Gem in the Spotlight: Sapphire

    … whose reflection gave the sky its color. Ancient priests and sorcerers honored sapphire above all gems, for this stone enabled them to interpret oracles and foretell the future. Symbolizing truth, sincerity and tradition, it has been said… Moses received the Ten Commandments they rested on tablets of sapphires. Marriage partners put great faith in the stone. If its luster dimmed, one knew his or her spouse had been unfaithful. Sapphire refused to shine when worn by the …

  6. Tanzanite is a beautiful blue purple gemstone that is very rare

    Gem in the Spotlight: Tanzanite

    Beauty and rarity are two wonderful traits in a gemstone. Tanzanite has them both. In fact, it is estimated that Tanzanite is 1,000 times rarer than diamond. But, what makes… uninteresting and bland to look at. They are also priced very cheaply. Just because jewelry has Tanzanite as the gemstone, does not necessarily make it valuable. You have to see the color for yourself to know how valuable the gemstone … who talked about his blue-violet crystal with Manuel de Souza. Then, in 1968, it was Henry Platt who named the stone “Tanzanite.” It was announced in that same year by Tiffany & Co. In 2002, the American Gem Trade Association (AGTA) …

  7. Group of loose topaz gems and topaz jewelry

    Gem in the Spotlight: Topaz

    …, to violet, to green. These coatings can allow topaz to be any color of your preference. Topaz itself is a hard gemstone with a Mohs hardness of 8. Mohs hardness is a standardized metric of how difficult it is to scratch something. For …a single sharp blow, a trait it shares with diamond. Clean with mild dish soap; use a toothbrush to scrub behind the stone where dust can collect. Never use ultrasonic or steam cleaners on topaz. Sudden changes in temperature can fracture …

  8. Loose fantasy cut aquamarine

    Gem in the Spotlight: Aquamarine

    … to banishing fears and phobias. Aquamarine is a universal symbol of youth, hope, and health. In ancient times, the stone was said to aid seafarers. Sailors often wore amulets of aquamarine to give them courage and tame the ocean waves. …friends.” Another saying is, “to wear aquamarine earrings brings love and affection.” Aquamarine as a precious stone has always been popular. In ancient times, the aquamarine was believed to instill courage in those who wore them.  Ancient…

  9. Beautiful iolite jewelry and loose gemstones

    Gem in the Spotlight: Iolite

    Iolite is maybe not the first gemstone people think of for their blue-violet jewelry, but it should be near the top of the list. Iolite’s color range of … popular gems, iolite cannot be heat treated to enhance its color. The color you see is the natural color of the stone when it was first discovered. This adds value to many gem buyers who don’t want a treated gemstone. Color Me Impressed … is caused by differing absorption of light rays in doubly refractive crystals. Thus, no singly refractive gemstone can exhibit pleochroism. The process works because of the ability of a gem to absorb different wavelengths of transmitted …