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Fine Jewelry University Articles matching: “Gold-ring-37c old school”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Opal
…Opal is not as hard as some other gemstones, making it susceptible to scratches and damage from sharp impacts. Household chemicals and extreme temperature fluctuations can also harm opals, so gentle care is essential. To keep opal at its…, so be careful not to submerge them in water or let them dry out too quickly. Amazingly, hydrophane opals can hold up to 20% water content. Types of Opal Black Opal : Revered for its dark gray to blackish body color, black opal is a …
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Gem in the Spotlight: Amethyst
… reputed benefits are an ability to quicken the intelligence, make the owner more successful in business, protect soldiers, assure victory, help hunters, guard against contagious diseases, and control evil thoughts. Amethyst was once as … a little more and get a high grade amethyst, you are getting a gem whose color and brilliance are marvels to behold. In the end, a gem’s value to a person is not always the price paid but the beauty of the jewelry. Amethyst can make …
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What are “Blood Diamonds”?
…along with other natural resources) to achieve their illicit goals. The vast majority of diamonds come from countries at peace. These countries have been able to invest the revenue from diamonds into the development of infrastructure, schools and hospitals for the good of the communities in which diamonds are found. These countries include Australia, Botswana, Canada, Namibia, Russia, South Africa and Tanzania. Botswana in particular has been greatly helped by its diamond…
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Gem in the Spotlight: Sapphire
… used before the word sapphire. Sapphire, a variety of corundum, comes in all colors except red (the red variety being known as ruby), but is especially popular in deep blue. Fancy colored sapphires including pink, green, orange, and golden yellow are magnificent in any jewelry. See More on Etsy › With the exception of the diamond, which measures 10 on the Mohs scale, sapphire and ruby (9 on the Mohs scale) are the toughest and most durable gemstones. This toughness …
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Gem in the Spotlight: Ruby
… aspect of rubies is their association with dragons. In ancient Chinese mythology, dragons were often depicted holding or guarding precious rubies, which were believed to represent their fiery breath and fierce power. Today, ruby is … along with two diamonds weighing a total of 5 carats. In 2015, Sotheby’s put the ring up for auction where it sold for a record setting $30.42 million dollars to an anonymous Swiss buyer. Care and Cleaning of Ruby Rubies are sturdy …
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Synthetic Gems: The Whole Story
… satellite or internet sites can be over whelming. Another tricky way to buy is estate jewelry; many private sellers don’t really know what they have when they sell on e-bay or the newspaper. The other places I have seen synthetics sold as natural are overseas tourist shops and live auctions. Unfortunately paper work is no guarantee of the facts of the gem. Some gemologist made an honest mistake on appraisals or I have seen gem reports that are just fraudulent. In …
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The Magic of Polarized Light
… lens to selectively see through the surface of water 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… appear. This is because the stone has a high birefringence (i.e. a high amount of double refraction). When you hold a polarizing filter over the stone one of the images disappears; as you rotate the polarizing filter the current image …
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Jewelry Solder: What You Should Know
Solder is the unseen “glue” that holds most jewelry together. If you have ever had a ring sized, a chain repaired, or … action. But, what is solder and how is it different than the rest of the metal that makes up your jewelry? What is Solder? To answer this question we first have to understand metal alloys. If you haven’t already, now would be a great … metals in different combinations called alloys. For the sake of simplicity, we will focus our discussion on gold jewelry, but the same concepts also apply to silver and platinum as well. If your ring is made out of 14 karat gold, you …
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Jewelry Repair FAQ
…t see answered here, please contact us and let us know. A gemstone fell out of my ring. Will the new stone match the old one? We get this question all the time. People want their jewelry to look just the way it did before a gemstone fell…becomes at risk of falling out of the mounting. Retipping is the process of adding a small amount of metal (usually gold or platinum) to the top of worn down prongs to keep the gemstone secure. In the past, almost all gemstones had to …
