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Fine Jewelry University Articles matching: “quartz and gold ring”
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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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What Are Lab Grown Diamonds?
…, synthetic gem that actually has some diamond-like properties. For example, diamonds are especially good at transferring heat, and so is Moissanite. This is important because the most popular diamond testers use heat dispersion to test …. The complexity arises from the fact that lots of different terms have been used to describe lab grown diamonds and their cousins, and not everyone uses these terms in the same way. So, let’s begin with some vocabulary. Synthetic. …
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The Magic of Polarized Light
… with singly refractive (SR) gems like diamond that only bend light in one direction. Gemologists use the term birefringence to refer to how doubly refractive a particular gem is. By far the most common use of polarized light in gemology …When looking through a microscope two images of the facet junction 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 …
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Fake Diamonds: The Great Diamond Attack
… made in a factory. Yes, they can make synthetic diamonds and have for many years now. Most are used in the manufacturing of tools like diamond tip drills. Synthetic diamond crystal big and pretty enough for jewelry has been made since … too much to justify using them. The technology is becoming more cost effective, and some synthetic diamonds are entering the market place now. Since they are the same chemistry as natural diamond, there is no easy test to use to separate…
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Gem in the Spotlight: Morganite
…. Compared with many other gemstones, Morganite is a relatively new addition with its first recorded discovery occurring in California in the early 1900s. This means you won’t find any tales of ancient kings wearing Morganite on their … believe it to be a powerful stone which facilitates the flow of energy throughout the body due to its ability to bring pure love to the wearer. Morganite is also believed to balance emotions and bring harmonizing fulfillment as it …
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Gem in the Spotlight: Blue Zircon
… color. But, zircon can be almost any color you can imagine including red, yellow, orange, brown, green, champagne, golden, saffron, and colorless. Zircon colors are pure and have that distinctive fire that sets it apart from other gems. … cleavage which creates a somewhat brittle tendency that can lead to chips, especially along facet edges requiring extra care when setting, cleaning, or wearing. The Mythology and History of Zircon Since it has been known from antiquity, …
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Gem in the Spotlight: Tsavorite Garnet
… the garnet family , there is much mythology surrounding it. Garnet has been thought of as a traveler’s stone offering protection and aid during long journeys. Garnet is also believed to aid in circulation and to protect against diseases… 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 …
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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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How to Tell If a Diamond Is Natural or Lab Grown
… and GIA (the Gemological Institute of America) have developed even more complex and sophisticated machines for answering this question. They have imaginative names like DiamondCheck, DiamondSure, and DiamondView. Roughly speaking, these …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…, it is easy to identify them because they aren’t diamonds. But, with lab grown diamonds, the chemical structure and properties are all the same as natural diamond, so it becomes much more difficult to differentiate them. Responsible …
