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Fine Jewelry University Articles matching: “Blue rose two price earnings”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Alexandrite
… most wavelengths of light very well, only transmitting green and red light. This means that depending on 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 stone will appear redder. Alexandrite has a refractive index of 1.746-1.755 with an average birefringence of .010. It has a …
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Types of Necklace Chains
… of the paperclip chain is its efficient use of metal. So, you can have a big chain look without a big chain price. This is a very nice feature to have when gold prices are high. The only downside is that this style isn’t quite as strong …Cost – The same large, heavy links that give the curb chain its strength and style also make it expensive. When gold prices are high, a heavyweight curb chain with solid links can be quite the investment. Common – As with some of the other…
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Anatomy of a Ring
…, because it obscures more of the stone. The half bezel is a solution to this that features metal that features two pieces of metal that wrap approximately a quarter of the way around the stone on opposite sides of it. Finally, a channel…
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What Are Lab Grown Diamonds?
…order to appreciate this fully, it helps to understand a little bit about how lab grown diamonds are made. There are two techniques to grow single crystal diamonds. The first and oldest is the High Pressure High Temperature (HPHT) … Titanate . This material became a popular diamond simulant in the 1950s. The 1960s brought the development of two simulants: Yttrium Aluminum Garnet (YAG) and Gadolinium Gallium Garnet (GGG) . Both are man-made diamond simulants. It is …
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Synthetic Gems: The Whole Story
… rubies, sapphires and emeralds. These gems in high quality have put ownership beyond most people to justify the price. Just a one carat gem could cost $3,000 and more. Most of the time people don’t wear them as an engagement ring where … and the only reason to spend that kind of money to make a synthetic gem is because it is very good. These high priced synthetic gems look very much like the nature gems. The color and sparkle of these synthetics look like the best nature …
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What to Do When Your Ring Irritates Your Skin
… what the cause of the irritation is. There are actually several different possible causes and it’s easy to waste a lot of time and money trying different solutions if you don’t know what the true source of the problem is. There are two main types of irritation: 1) Physical irritation caused by the metal rubbing against the skin, and 2) allergic reactions to jewelry. These types of irritation can look very similar, but their root causes and solutions are very different…
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Measuring Gold Weight
…all three systems.” 4 grains = 1 carat; 24 grains =1 pennyweight; 480 grains = 1 troy ounce; 15.432 grains = 1 gram. “Although we have stated above that the grain weighed the same in all three of the above systems, there were at least two different grains. The troy system used the supposed weight of the barley grain, whereas the wheat grain was also used as a standard of weight. There were three barley grains to four wheat grains.” That is enough trivia for now. If you…
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Gem in the Spotlight: Tsavorite Garnet
…bright and lively with a high refractive index giving it excellent sparkle and scintillation. Tsavorite is also a very rare gemstone. It is uncommon to find Tsavorite in sizes larger than five carats, and most faceted stones are below two carats. By some estimates, Tsavorite is around 200 times rarer than the much better known Emerald. Gemology Tsavorite’s rarity and beautiful green color reminds one of the other green garnet called Demantoid. Demantoid, however, is a …
