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Fine Jewelry University Articles matching: “Ring stamped with letter u and an arrow”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Amethyst
… deposits in other countries such as Russia, the United States, and Canada. Amethyst is known for its durability with a Mohs hardness rating of 7. For reference, amethyst is roughly as hard as tourmaline, softer than sapphire and topaz, … that is resistant to scratching and chipping. It is also resistant to heat and chemicals which means that it can withstand daily wear and tear. Amethyst has the same refractive index as other varieties of quartz at 1.54-1.55 and is …
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Gem in the Spotlight: Tourmaline
…topaz or sapphire and harder than tanzanite or opal. Tourmaline is found in a huge variety of colors (sometimes even within the same gem), and some of these colors have their own names: Rubellite: is red, pinkish red, orangy red, or pink … unique property. One of tourmaline’s most distinctive traits is its ability to be multicolored as mentioned above with watermelon tourmaline. The gemological term for this is parti-colored tourmaline. This includes bi-color, tri-color, …
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Synthetic Gems: The Whole Story
… 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 over $10,000 routinely. The answer was to find a less expensive way to have these gems. It took …synthetics are so well made it is impossible to id them in jewelry and can only be positively identified in gem labs with millions of dollars worth of equipment and world class personnel. Synthetic diamonds on the high end and synthetic …
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Gem in the Spotlight: Quartz
… Drusy Quartz. Some quartz material is a dollar per pound while others are $1,000+ per carat. Quartz is a gemstone with surprising variety. The most important reason for this variety is that quartz comes in 3 main forms: macrocrystalline… since it’s your birthstone. Of course, the same also goes for November babies and Citrine. You may be less familiar with some of the other single crystal varieties of quartz like Rose Quartz, Morion, and Rutilated Quartz. These less …
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Star White Gold
… gold is bright. White gold has a pure reflexive look. White gold is white…or is it? White gold can be compared with gasoline. There are generally three grades of gasoline, regular (really the lowest), mid grade, and premium. In … grade 1 is premium. This means that when white gold is made, it can be yellowish to light yellow. When white gold rings are new they are coated with a white metal called rhodium. Rhodium is a metal very similar to platinum and rhodium …
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Art Deco vs. Art Nouveau Style Jewelry
… unique elements into jewelry design, reflecting broader cultural and artistic shifts while captivating wearers with their unmistakable aesthetics. While there is always overlap in art, these two particular movements formed around very … 19th century (1890 – 1910), Art Nouveau emerged as a rebellion against the academic art of the time. It sought to bring the natural world into artistic design, emphasizing flowing lines, asymmetrical forms, and motifs inspired by plants…
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Gem in the Spotlight: Jade
… of the gem. History and Lore of Jade Jade’s incredible toughness has made it a useful tool throughout history. During the Stone Age of many cultures, jade was used for agricultural tools and weapons such as axe heads and knives. Jade has… 1700s, gem carving had already been a tradition for thousands of years. At that time, gem carvers worked primarily with nephrite, quartz, lapis lazuli, and wood. With the introduction of jadeite, the carvers switched focus from the …
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How Are Lab Grown Diamonds Made?
… charcoal to 3,500 degrees Celsius inside a carbon crucible. Many attempts were made to reproduce his techniques with some reported successes, but none could ever be scientifically verified. The quest continued. Diamonds are a crystalline… formation are naturally found. We see diamonds closer to the surface of the earth when a rare type of deep volcano brings them up to where humans can find and mine them. The first successful synthetic diamonds were made by mimicking …
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Styles of Earring Backs
Earrings come in many different styles. Here we will explore the more common types of earring backs, highlighting some of …mind and don’t know the proper name for it. Maybe you are looking for the perfect gift. Maybe you are having trouble with your current earrings and are looking for alternatives. Or maybe you are simply interested in expanding your general… Backs) Also called “butterfly backs,” and sometimes “push backs.” These are undoubtedly the most common style of earring back. They work on earrings with posts, using friction to secure the earring in place–hence the name. Often times …
