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Showing all results for: “chemical equation”
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… piece. The center is a stunning pallasitic peridot which is peridot that is 100% extraterrestrial in origin. This stone is one of the extremely rare meteorites that survived its trip through the earth’s atmosphere and had the right chemical make up to contain gem quality peridot. The setting borrows for the Art Deco tradition with some modern to touches to create a stunning, one-of-a-kind ring
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Blog Posts
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The Truth About Synthetic Gems
… from an article I wrote: Man made gems come in many forms. Every thing from simple glass to plastic to high tech chemical tongue twister like gadolinium gallium garnet (also called GGG) and the modern diamond simulant moissanite, a man made … are easy for a well trained and equipped gemologist to detect. But if you had gem material that is the same chemically, optically and crystal structure as a natural gem, it would be very hard to tell them apart. In gemology we call this a …
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The Magic of Jewelry Repair
…great moment everyday. We see jewelry that’s taken all kinds of abuse. Earrings that have been flattened by car tires, engagement rings that have done battle with the garbage disposal, pendants that have been soaked in every household chemical known to man, and more have all crossed our doors. And, the best part of our day comes when we get to reveal this jewelry after it’s been repaired, reconditioned, and restored to its owner. We wanted to share some of this excitement …
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How Much is My Jewelry Worth?
… value. Intrinsic Value or Cash Value The intrinsic value of jewelry is the simplest and easiest to understand. The equation for intrinsic value is: intrinsic value = metal value + gem value The metal (gold, silver, platinum, etc.) and gems (… the jewelry. Furthermore, if the jewelry is desirable in the market place, then a design premium is added. The equation for resale value is: resale value = intrinsic value + workmanship + style Of course, this isn’t an exact science, and …
Fine Jewelry University (Show All FJU Articles)
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What Are Lab Grown Diamonds?
… 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 diamond” has the same crystal … like nature does under extremely high pressure and temperature. The newest way to grow synthetic diamonds is the Chemical Vapor Deposition (CVD) technique. In the CVD process, a chamber is filled with a carbon rich vapor. Carbon atoms are …
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Synthetic Gems: The Whole Story
… what nature can produce. Man made gems come in many forms. Every thing from simple glass to plastic to high tech chemical tongue twister like gadolinium gallium garnet (also called GGG) and the modern diamond simulant Moissanite, a man made … are easy for a well trained and equipped gemologist to detect. But if you had gem material that is the same chemically, optically and crystal structure as a natural gem, it would be very hard to tell them apart. In gemology we call this a …
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Jewelry Solder: What You Should Know
… that it is so resistant to tarnishing or discoloring over time. Tarnishing, also called oxidization, is a result of chemical reactions between the metal and elements in the air and liquids that it comes in contact with. The result of this …. Unlike pure gold, base metals are not nearly as resistant to tarnishing. These metals can easily have those chemical reactions with the elements around them causing them to discolor. By adding additional base metals to solder alloys the …
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Gold Purity and The Differences Between White and Yellow Gold
Gold, just the word brings to mind value, rarity, wealth, beauty and jewelry. But what is gold? Yes the scientists tell us gold is an element with the chemical symbol Au. We know it is the heraldic metal and it is a rare yellow mineral that is the most malleable and pliable of all metals. Yes, but what does that mean to me? Gold is a beautiful metal that is used to make timeless jewelry. …
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Gem in the Spotlight: Tsavorite Garnet
… green color reminds one of the other green garnet called Demantoid. Demantoid, however, is a completely different variety of garnet found primarily in Russia. Tsavorite is 7.5 on the Mohs scale. It is a green grossular garnet with a chemical make-up of CA 3 Al 2 (SiO 4 ) 3 . It has a Refractive Index (RI) of 1.740 and a dispersion index of 0.028. So how did Tsavorite come to be called Tsavorite? Its technical description as a green grossularite doesn’t exactly roll off the…
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How Are Lab Grown Diamonds Made?
…cubic press. Weighing in at 10.02 carats, this incredible diamond is graded as E color and VS1 clarity. CVD Diamonds Chemical Vapor Deposition (CVD) is a more recently developed technique by which diamonds can be grown from a hydrocarbon gas ….23 carats; it was graded as I color and VS2 clarity. Intense research is ongoing around the world into the field of Chemical Vapor Deposition, and every day the technology is improving. Only time will tell if and when CVD diamonds will reach…
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Presentation Engagement Ring
… ring designs are amazingly varied. One look at the different styles on our website can give a small hint of just how many options there are. The presentation engagement ring takes the pressure of getting it exactly right out of the equation and lets you focus on other things. The third problem solved is the problem of price. How to keep the engagement ring in budget? The main diamond on engagement rings can range from 60% to 99% of the total cost of the ring. The average …
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Balance : Earth Friendly Lab Grown Diamond Engagement Rings
…you’re not familiar with lab grown diamonds (you’re not alone), we have a collection of fun and informative articles about them that you can read right here on our website. The highlights are: They are identical to natural diamonds in chemical composition, light properties, hardness, etc. They are virtually indistinguishable from natural diamonds even to a gemologist without highly specialized equipment They are not cheap imitations like Cubic Zirconia (CZ). They are real …
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Recycled Diamond Engagement Rings
… your part to reduce the environmental impact of your jewelry. Another alternative to consider is choosing a lab grown diamond. These are 100% real, genuine diamonds that are produced in a lab instead of mined out of the Earth. Their chemical composition is identical to natural diamonds, and so they share the same beauty and durability as natural diamonds. Of course, some resources go into the production process, but it is generally believed that the environmental impact of…
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Alternative Gemstones for a Non Traditional Engagement Ring
… for a wedding ring. Most of these gemstones are made to look like Diamonds, but are available at a fraction of the cost. Lab grown diamonds are another alternative to consider. These are man-made diamonds that have the exact same chemical composition and properties as natural diamonds. Unlike CZs and Moissanites, lab grown diamonds look exactly like natural diamonds, and even gemologists can have difficulty differentiating them. If you’re interested in going this route, be…
