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Fine Jewelry University Articles matching: “Loose sapphires”
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Fine Jewelry University (Show All FJU Articles)
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Jewelry Repair FAQ
… way it did before a gemstone fell out; who wouldn’t? That’s why we have literally 100s of carats of loose diamonds, sapphires, rubies, opals, pearls, and more in all shapes and sizes to choose from when selecting a replacement stone for …by the jeweler’s torch. However, with our laser welder we are able to retip prongs next to many gemstones (diamonds, sapphires, and rubies for example) without removing them, saving you time and money. Can my costume and fashion jewelry be …
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Gem in the Spotlight: Sapphire
…, sincerity and tradition, it has been said that when Moses received the Ten Commandments they rested on tablets of sapphires. Marriage partners put great faith in the stone. If its luster dimmed, one knew his or her spouse had been unfaithful… gemstone, the sapphire has been treasured for thousands of years. Kings and queens have always believed that sapphires represent divine favor. The color blue was considered sacred and was worn by priests to show their connection to the sky …
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Gem in the Spotlight: Ruby
… arguably the richest history of all gemstones. Gemology of Ruby Rubies are in the corundum gem family along with sapphires. Corundum is an extremely durable form of aluminum oxide with a Moh’s hardness of 9. This makes ruby one of the hardest… from trace amounts of chromium in the crystal structure. If they are too purple or too pink, they are called purple sapphires or pink sapphires, respectively. Since sapphires and rubies are the same gem material, they also share a refractive …
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Synthetic Gems: The Whole Story
… beautiful gems and very rare in their stunning beauty. These four gems have been coveted by rulers and the rich for thousands of years. But, what if anyone could own them? At gem shows and museums, I have seen jaw dropping 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 people can spend …
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Frequently Asked Question about Jewelry
… Certificate and an Appraisal? A Diamond Certificate is a document issued by a Gemological Laboratory describing a Loose Diamond. The laboratory will not issue certificates on Diamonds which are set in a mounting. A Diamond Certificate … period of time, assuming the Diamond does not chip or is not otherwise altered. An appraisal can be performed on a loose Diamond, a mounted stone, or jewelry. If the stone is not loose, the physical properties are estimated using various …
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Gem in the Spotlight: Peridot
…. Do not use a home ultrasonic machine for cleaning. Instead, use warm soapy water and a tooth brush for at-home cleanings. If well cared for, Peridot jewelry can last generations. We have an excellent selection of Peridot jewelry and loose Peridot gems that we can set for you. Come by the shop to find your
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Gem in the Spotlight: Tanzanite
…, even with its rarity and dynamic look, tanzanite is still less in price than more commonly known gems like rubies, sapphires, and emeralds. Gemology of Tanzanite Gemologists refer to this gem as blue zoisite. The vast majority (current … to an Indian prospector named Manuel de Sousa who Ali showed the stones to. Manuel had originally thought he found sapphires, but after discovering they were too soft, he started searching for answers as to what these gems could have been. …
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Gem in the Spotlight: Tsavorite Garnet
The discovery of Tsavorite in East Africa in the 1960s changed the jewelry world. Here was a gem with the color to rival the most exquisite emeralds and the clarity of the cleanest sapphires, all with the time tested durability of garnet. Tsavorite is a unique form of garnet with a stunningly vivid green color. It is bright and lively with a high refractive index giving it excellent sparkle and scintillation. Tsavorite is…
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How to Tell If a Diamond Is Natural or Lab Grown
… IIa test is only an indicator for the gemologist to use. There are lab grown diamonds that are not Type IIa, and there are natural diamonds that are Type IIa, so it’s not a 100% conclusive test. Also, a diamond has to be completely loose (unmounted) to perform the test. Photoluminescence Spectroscopy and UV Radiation Going beyond the Type IIa test, more advanced equipment exists that uses spectroscopic techniques to analyze gems. One such machine is the DiaTrue …
