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Fine Jewelry University Articles matching: “Greenish stone”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Tourmaline
…: is red, pinkish red, orangy red, or pink tourmaline. Indicolite: is dark blue, dark violetish blue, or dark greenish blue tourmaline. Paraíba: is a copper colored blue, intense violetish blue, or greenish blue tourmaline from Paraíba, …Tourmaline becomes electrically charged when under mechanical stress (squeezed or impacted). This effect allowed the stone to be used in early sonar systems in the First World War as well as in extremely sensitive pressure gauges in …
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Anatomy of a Ring
… The gallery of a ring is a somewhat ambiguous term that refers to the underside of the ring beneath the center stone. There is often a design on the top part of the ring that is lifted up above the finger. In order to maintain the …next to each other. The constant friction with another ring can actually wear through the gallery leaving the center stone at risk of calling out. This is why we typically recommend that you have your rings soldered together if you plan to…
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Gem in the Spotlight: Quartz
… different ways of saying “Quartz!” Crystal Name Color Amethyst Purple Citrine Yellow to reddish orange to brown, greenish yellow Prasiolite Green (often mistakenly referred to as Green Amethyst) Rock Quartz Clear Rose Quartz Various shades … at the title and knew). Quartz is one of the most common minerals on earth. Many quartz varieties are cut into gemstones, but some varieties are very rare. Some are ordinary like rock quartz, others are exotic like Drusy Quartz. Some …
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The Birthstones
…Aquamarine Originating its name from the Latin “aqua marina” meaning “sea water”, the aquamarine is a light blue to greenish blue beryl, most valuable when it’s a shade of darker blue. Sailors often wore amulets of aquamarine to give them …January’s Birthstone: Garnet January babies born in the midst of cold, white (valley fog) and at times stark surroundings are rewarded … long-lasting love, and prevents hearing difficulties. Learn more about Garnet and Tasvorite Garnet February’s Birthstone: Amethyst Amethyst, transparent purple quartz, is the most important quartz variety used in jewelry. Purple has long …
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Gem in the Spotlight: Alexandrite
… the light source the stone will reflect more of the accent colors of light. Since fluorescent light has a stronger greenish-blue component, the stone appears greener. Under candlelight, which has a much stronger red/orange component, the … known around the world as one of the most sought-after gems for the better part of 200 years. But, what makes this stone so special? Gemology of Alexandrite Alexandrite is the extremely rare, color-change variety of a gem species called …
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Gem in the Spotlight: Aquamarine
… 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-… 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. …
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Learn Secret Diamond Buying Skills From a Professional Diamond Buyer
… 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 energizes …. The cut “C” of the 4 C’s has two components. The first component is simple. The cut can refer to the shape of the stone. Round, Marquee, Pear, Oval, Square, and Princess all describe the shape of the gem. Round diamonds are by far the …
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The Magic of Polarized Light
… Polarizing filters are critical to many fields of study. Without them, we wouldn’t be able to easily identify gemstones, TVs and monitors wouldn’t work in the same way, and the latest blockbuster movie wouldn’t pop off the screen the way … them to function efficiently as they do without negative side effects. Using Polarized Light in Gemology Some gemstones, due to their unique chemical structure, actually polarize light themselves. These gems are doubly refractive (DR) and…
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Gem in the Spotlight: Emerald
Springtime exudes life, full of bright colors and renewed energy. Emerald, May’s gemstone, captures this enthusiasm for life in rich elegance. This precious gemstone has been revered for over 4,000 years … quartz varieties. The refractive index of emerald ranges from 1.57 to 1.58, making it a moderately refractive gemstone. Its specific gravity ranges from 2.65 to 2.75. One of the distinctive features of emeralds is that they often contain … are referred to as jardin (the French word for garden) because they look like moss or a garden inside of the stone. These inclusions are tiny fissures, bubbles, or crystals that are visible to the naked eye. These inclusions are not …
