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Fine Jewelry University Articles matching: “Tungsten Carbide Ring”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Alexandrite
… 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 specific gravity of 3.73 and a Mohs hardness of 8.5. Because of its high hardness, alexandrite is … alexandrite’s tremendous value and rarity, it is recommended to be worn carefully or put in jewelry such as earrings or pendants that are less prone to impacts than rings, for example. Alexandrite isn’t the only stone to display color-…
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Gem in the Spotlight: Iolite
… different colors when observed at different angles, especially with polarized light. Pleochroism is caused by differing absorption of light rays in doubly refractive crystals. Thus, no singly refractive gemstone can exhibit pleochroism. … than Emerald or Topaz. Because of this, some extra care should be taken with your iolite jewelry. Try to avoid wearing it in situations where it might be hit against hard objects to keep it free from cracks and small chips. Iolite is a …
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The Difference Between White Gold and Platinum
… its karat. The key to understanding gold karat is the karat value over 24. An example is a 14-karat gold wedding ring. It is 14/24, which equals 58.3% gold and 41.7% alloy. The white color is achieved by a careful choice of the alloying … because if you don’t like the light yellow look of a specific manufacture, then don’t buy it. New white gold rings are usually coated with a hard protective finish of rhodium, a silver-white metal like platinum. The rhodium plating is …
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Gem in the Spotlight: Pearl
… changed hands many times, and was owned by several famous figures, including Napoleon III and Elizabeth Taylor. During Taylor’s ownership, the pearl was set into a necklace designed by Cartier, which also included diamonds and rubies. … once part of a larger piece of jewelry that also included the Hope Diamond, and that the two gems were separated during the French Revolution. Today, the Hope Pearl is owned by a private collector and is occasionally displayed at museums…
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Gem in the Spotlight: Sapphire
… sacred and was worn by priests to show their connection to the sky and heaven. Sapphires were set in the Bishop’s ring as a symbol of unity between the priest, the sky and heaven. Sapphire has been associated with divine favor. The … Anglo-Saxons from 1042-1066, met a beggar one day. King Edward had nothing of value on him except for his sapphire ring, which he generously gave to the beggar. The beggar was really a messenger from God, who later returned the ring to …
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Types of Jewelry Clasps
…production of jewelry, and the demand for simpler, more affordable clasps grew. This led to the development of the spring ring clasp, which is still widely used today. The spring ring clasp features a small, spring-loaded mechanism that …. Other types of jewelry clasps that emerged in the 20th century include the lobster clasp, which features a spring-loaded mechanism that opens and closes by pressing a small lever, and the toggle clasp, which consists of a bar that …
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The History of Diamond Cuts
… experience to get the job done right. The point cut diamond is likely where the tradition of the diamond engagement ring began. Mary of Burgundy became the first to receive a diamond engagement ring. Archduke Maximilian of Austria gave … the show straight up. Instead, they show it in a dome effect. The Modern Round Brilliant Cut Now, we are nearing the end of our journey through the history of diamond cuts. The modern round brilliant cut is a product of math and science…
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Platinum
…. Platinum is rare, the coveted treasure of discerning individuals. Platinum is one of the strongest and most enduring metals. Some of the world’s greatest treasures are set in platinum, such as the Hope Diamond. It is also one of the …. These qualities of platinum are equivalent to the ideals of eternal true love. All over the world, engagement rings, wedding bands and anniversary rings made in platinum symbolize the everlasting endurance of love. Platinum is pure, an …
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Caring for and Cleaning Your Jewelry
… or special events only. Understanding the limits of your jewelry should allow for years of enjoyment. One of the best ways to prevent your jewelry from being damaged is to remove it when you do certain activities. Always remove your rings when you garden, do the dishes, or generally work with your hands. Make sure to put your jewelry in a safe place that you will remember when you take it off. There is a lot you can do on your own to keep your jewelry shining like new…
