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Fine Jewelry University Articles matching: “Peridot gemstone”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Tourmaline
…. Care and Cleaning of Tourmaline Tourmaline makes a great gem in a ring for occasional wear or a pendant/earrings for daily wear. Because it isn’t exceptionally hard (Mohs hardness of 7-7.5), it should be stored away from other gemstones that could potentially damage it. Tourmaline should not be put into an ultrasonic cleaner or steam cleaned, and should only be cleaned with warm, soapy water. With proper care, a piece of tourmaline jewelry can last generations and even …
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Gem in the Spotlight: Jade
Jade has one of the richest heritages of all gemstones. People have been using jade from as early as 6,000 BC, and it has been an incredibly important part of Asian, Central American, and North American history ever since. But, what is jade, and what has given it such a prominent place …
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Synthetic Gems: The Whole Story
Synthetic rubies, emeralds, sapphires, diamonds and more are everywhere. Man made gems come in many forms: every thing from simple glass to high tech chemical tongue twister like gadolinium gallium garnet (also called GGG) and the modern diamond simulant moissanite. Synthetic gems are not bad, fakes, or the curse of a modern society. The more you know about them, the better you can understand their place in our society and in the jewelry world.
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Gem in the Spotlight: Tanzanite
Beauty and rarity are two wonderful traits in a gemstone. Tanzanite has them both. In fact, it is estimated that Tanzanite is 1,000 times rarer than diamond. But, what makes… that isn’t heated and is still pretty enough for jewelry displays trichroism. Trichroism is an effect that causes gemstones to display different colors when viewed at different angles. Tanzanite in its raw form has three colors: blue, purple…has been heated by using a dichroscope. This is a tool that gemologists use to separate the pleochroic colors that a gemstone has. If there is a strong green component at any angle, then it likely has not been heated. The main factors that …
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Gem in the Spotlight: Sapphire
… her spouse had been unfaithful. Sapphire refused to shine when worn by the wicked or impure. Known as the celestial gemstone, the sapphire has been treasured for thousands of years. Known as the celestial gemstone, the sapphire has been …, which measures 10 on the Mohs scale, sapphire and ruby (9 on the Mohs scale) are the toughest and most durable gemstones. This toughness makes the sapphire a long lasting piece of jewelry as well as a useful industrial tool. One last legend…
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How Are Lab Grown Diamonds Made?
…, but none could ever be scientifically verified. The quest continued. Diamonds are a crystalline form of carbon, and so making artificial carbon crystal was the problem of lab grown diamonds. For decades, manufacturers of synthetic gemstones tried growing diamonds like they grew rubies, sapphires, and emeralds. It failed. Then they had the idea to grow diamonds in the lab like they grew in nature. High Pressure High Temperature Diamonds How does nature form diamond …
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How to Tell If a Diamond Is Natural or Lab Grown
How can I know if my diamond is real? This is a question we get all the time, and it’s not as simple as you might think. First, you have to decide what “real” means. If you are not familiar with lab grown diamonds, you might want to check out our introduction to lab grown and synthetic diamonds before continuing with this article. So, now you know that lab grown diamonds are just as real as natural diamonds, but we still want to be able to tell them apart. When
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Gem in the Spotlight: Pearl
Pearls have been sought after and loved by people for hundreds of years of human history. In this in-depth article, we explore the science, history, and gemology of this incredible product of nature. Learn about famous pearls like La Peregrina, the seven value factors of pearls, the difference between saltwater and freshwater pearls, and much more.
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Is a Lab Grown Diamond Right for Me?
Picking a diamond for your engagement ring is a big decision. For most of us, buying a diamond is a significant financial undertaking, and we want to get it right. Unfortunately, understanding diamonds takes a lot of specialized knowledge that most people don’t have (anyone remember their refractive indexes from high school physics?). Even more unfortunately, the diamond industry suffers from a lot of misinformation and paranoia both from inside the trade and from outside observers. I have heard people say that natural diamonds come with a 400% mark up,
