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: “black opal ring”

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

Fine Jewelry University (Show All FJU Articles)

  1. Opal Rings With Loose Opal Gemstones

    Gem in the Spotlight: Opal

    … for long enough. A white opal can be darkened to have a gray body color, and gray opals can be darkened to have a black body color. A gemologist with right training and equipment will be able to detect this treatment. Opals can also …gems are manufactured using a thin slice of natural opal. In doublets, a lapidarist will use a piece of ironstone or black onyx and glue the fragile piece of opal to it before cutting and leaving them glued together after the fact to be …

  2. Alternative metal wedding band options for men

    Alternative Metals for Men’s Jewelry

    … a smooth glossy finish. It also can be made in almost any color possible. Ceramic rings are available in stunning black to very creative colors and can be found in a variety of finishes from matte to highly polish. Overall, ceramic … element which begins with a silver color. Zirconium is then heat treated and exposed which oxidizes it to a rich black color. The oxidization layer feels much like a ceramic and is as hard as sapphire. The black color is permanent. It …

  3. The Birthstones

    …lore surrounding garnets is that it protects the wearer from nightmares, promotes long-lasting love, and prevents hearing difficulties. Learn more about Garnet and Tasvorite Garnet February’s Birthstone: Amethyst Amethyst, transparent … the Middle Ages. It was, in particular, considered to be the stone of bishops and bishops still often wear amethyst rings. The Greek work “amethystos” basically can be translated as “not drunken.” Amethyst was considered to be a strong …

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

    Gem in the Spotlight: Quartz

    … shades of pink, typically has a smooth, milky or hazy appearance Smoky Quartz Transparent brown Morion Dark-gray or black crystal quartz Rutilated Quartz Typically colorless and can have black or gold needle inclusions Ametrine Purple and… red with a fire of color Moss Agate Multiple shades of green or brown moss like inclusions in chalcedony Onyx Black, also white and black straight banded agate Jasper Opaque chalcedony, typically red to brown but can be various colors …

  5. Single white round pearl on white background

    Gem in the Spotlight: Pearl

    … quality, and today they are very difficult to tell apart from their saltier cousins. Tahitian Pearls: Also known as black pearls, Tahitian pearls are a type of saltwater pearl that are grown primarily in French Polynesia. They are known … rainbow colors that shimmer on or just below a pearl’s surface). Pearls come in a range of colors, from white to black, with many shades in between. The most valuable pearls are those with a pure, even color, such as white, pink, or …

  6. Tourmaline jewelry and loose gems

    Gem in the Spotlight: Tourmaline

    … to 1.644 and a Mohs hardness of 7 to 7.5 which makes it softer than topaz or sapphire and harder than tanzanite or opal. Tourmaline is found in a huge variety of colors (sometimes even within the same gem), and some of these colors have … as their concentration, different colors will be present. Copper, manganese, chromium, and vanadium are the key coloring agents in tourmaline. Another unique facet of tourmaline is its ability to become electrically charged in certain …

  7. Group of loose emerald gemstones

    Gem in the Spotlight: Emerald

    … found. What sets trapiche emeralds apart from other emeralds is their unique growth habit, featuring six black spokes radiating from a hexagonal core. This distinctive pattern is believed to form due to interruptions in the crystal growth…Springtime exudes life, full of bright colors and renewed energy. Emerald, May’s gemstone, captures this enthusiasm for …Elizabeth Taylor received a 23.46 carat emerald and diamond pendant/brooch from her future husband Richard Burton during the shooting of Cleopatra . She wore the emerald on her wedding day and it was later sold at Christies in 2011 for $6…

  8. A collection of jade jewelry and loose gems

    Gem in the Spotlight: Jade

    …high polish. Nephrite is commonly found in a darker olive green color but can also be very light green, orangey-red, black, and yellowish green. Jadeite can come in many different colors including pink, purple (often called lavender jade… of the gem. History and Lore of Jade Jade’s incredible toughness has made it a useful tool throughout history. During the Stone Age of many cultures, jade was used for agricultural tools and weapons such as axe heads and knives. Jade has…

  9. Nickel in jewelry can cause allergic reactions

    What to Do When Your Ring Irritates Your Skin

    … which can begin hours or even days after contact and may last for several weeks. Some people’s skin even turns black or green when they wear certain jewelry. One of the most common metal allergies is Nickel which is added to pure gold in … a simple discoloration on top of the skin from the metal. Also, tarnish from silver jewelry can rub off and leave a blackish residue. In both cases, the color will easily wipe or wash off. You can avoid this type of discoloration simply …

Subscribe