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Fine Jewelry University Articles matching: “Marked AG”
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Fine Jewelry University (Show All FJU Articles)
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The Difference Between White Gold and Platinum
…% to 95% platinum and the balance alloy. Iridium or ruthenium is often used as a hardener alloy. Platinum is usually marked with .900 or .950 to mark its fineness. Some manufacturers state what alloy they are using like 90% Platinum 10% …’t bother you, or it looks better to you, then white gold is a great option. Editorial note: the preceding two paragraphs were true at the time they were written, but recent technological advances have produced an alloy of white gold …
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Gem in the Spotlight: Aquamarine
… Mythology of Aquamarine Long associated with tranquility and happiness, aquamarine was also thought to instill courage, cure laziness, and sharpen the intellect. The ancient Greeks used aquamarine often in jewelry believing it captured…. 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. One myth says, “to dream of aquamarine signifies the making of new friends.” Another saying…
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Gem in the Spotlight: Emerald
… in ancient Rome (possibly one of the earliest forms of sunglasses ever recorded). Emerald was used in the Middle Ages to foretell the future and was thought to ward off evil sorcery and cure demonic possession. The emerald was also … 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 process, allowing …
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Gem in the Spotlight: Tourmaline
… its unique properties and stunning array of colors. In fact, tourmaline is found in almost any color you can imagine, and people have most likely used and appreciated it for hundreds of years. But, before the advent of modern gemology… 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 …
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Gem in the Spotlight: Quartz
…. Sometimes you can see this structure with your naked eye as with Drusy Quartz, or you may need the aid of 10-50x magnification. This will not be a complete list, but it includes the most common gem varieties. Of these gems, Gold …chatoyancy Fossilized Wood Multi-colored and typically still has the appearance of wood (also called petrified wood) Agate Multi-colored chalcedony with curved bands Fire Agate Brownish red with a fire of color Moss Agate Multiple …
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The Magic of Polarized Light
… or only capture the reflection. Modern 3D movies: Unlike old school red and blue 3D movies, modern 3D uses two images along with a pair of glasses that have polarizing filters for lenses. This tricks your brain into thinking you are …help identify doubly refractive stones. When using a refractometer, a circular polarizing filter is fitted over the magnifier. When twisted, if the stone is doubly refractive, the refractive index line will jump from one number to the …
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The Birthstones
… it is not surprising that amethyst has been so much in demand over the years. Because amethyst was thought to encourage celibacy and symbolize piety, amethyst was very important in the ornamentation of Catholic and other churches in … work “amethystos” basically can be translated as “not drunken.” Amethyst was considered to be a strong antidote against drunkenness, which is why wine goblets were often carved from it! The gemstone still symbolizes sobriety. The …
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Learn Secret Diamond Buying Skills From a Professional Diamond Buyer
…is the look of your love when she sees that shining diamond ring on her finger for the first time. If there are any magic moments in life, that is one. Nothing expresses love and commitment like a diamond. This rare natural stone’s … price, just the basis to determine the price. In the final analysis, the price of a diamond is whatever two people agree it is. The easiest starting place for diamond value is carat. All carat describes is how much a diamond weighs. …
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Gem in the Spotlight: Blue Zircon
… for its variety of colors. Blue zircon is the most popular 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 … Starlite is rarely natural, and is almost always heat treated. Of course, the blue form of Zircon is also called, imaginatively, Blue Zircon. Blue zircon was a specific favorite in Victorian times, when fine gems were often featured in…
