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Gem in the Spotlight: Alexandrite
…said, because of natural 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 … in top-quality pieces by companies like Tiffany & Co. and Cartier brought it to the forefront of the high-end jewelry world where it has remained ever since. In its short history, alexandrite has set multiple records at auctions …
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Gem in the Spotlight: Ruby
… form of aluminum oxide with a Moh’s hardness of 9. This makes ruby one of the hardest gems commonly used in jewelry second only to diamond (which has a Moh’s hardness of 10) and moissanite (which is in between). Rubies only occur in the …treated to hide surface scratches or inclusion. Avoid using household chemicals or abrasives when wearing them. Ruby jewelry can be wiped with a soft, dry cloth often to remove dust and residue that will mar its sparkle. For more intense …
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Gem in the Spotlight: Tanzanite
…, similar to smoky quartz. The very small percentage of tanzanite 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 … of this means that the scarcity of tanzanite is only expected to increase. So, should you get a piece of tanzanite jewelry? Our advice would be to buy jewelry that you love to look at. No one knows what the future holds for the markets, but…
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Fake Diamonds: The Great Diamond Attack
… are used in the manufacturing of tools like diamond tip drills. Synthetic diamond crystal big and pretty enough for jewelry has been made since the 1950’s. But, it just costs too much to justify using them. The technology is becoming more …you’re interested you can learn more about how to tell if a diamond is lab grown . Synthetic gems are not new to the jewelry profession. Synthetic colored stones have been around for over a 100 years. The impact was dramatic in the beginning…
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Measuring Gold Weight
… say they are both a pound so they weigh the same. Both are wrong. How can this be? Tradition. Gold is not weighed in the ordinary weights. Gold is weighed in the troy measurement system. One ounce of gold is not the same as the …a pound of feathers.” Unfortunately there is one more piece of the puzzle. We all know 16 ounces equal a pound. True in the avoirdupois system, but not in the troy. In the Troy system only 12 ounces equal a pound. So a pound of feathers…
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Gem in the Spotlight: Opal
… index of 1.37 – 1.47 and a Mohs hardness of 5.5-6. This makes it one of the softest gemstones commonly used in jewelry. For reference, here are the Mohs hardness values for some other gemstones you may know: Diamond 10, Sapphire 9, Amethyst… glue the fragile piece of opal to it before cutting and leaving them glued together after the fact to be set into jewelry. In triplets, that thin piece of opal is sandwiched between a piece of onyx and a clear piece of laboratory grown …
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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… 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 also a very rare gemstone. It is uncommon to find … around 200 times rarer than the much better known Emerald. Gemology Tsavorite’s rarity and beautiful green color reminds one of the other green garnet called Demantoid. Demantoid, however, is a completely different variety of garnet …
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What Are Lab Grown Diamonds?
… like diamond but should never be referred to as a “synthetic diamond.” Because of this, along with most of the jewelry industry, we tend to use the term “lab grown diamond” to refer to a true synthetic diamond that shares the same chemical …In the simplest terms, lab grown diamonds are diamonds that have been made by people instead of mined out of the earth… 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. Understanding this …
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The Birthstones
… February’s Birthstone: Amethyst Amethyst, transparent purple quartz, is the most important quartz variety used in jewelry. Purple has long been considered a royal color so it is not surprising that amethyst has been so much in demand over …January’s Birthstone: Garnet January babies born in the midst of cold, white (valley fog) and at times stark surroundings are rewarded with one of the most varying … day. Garnet varieties brighten the world in colors of yellow to gold, bright orange to true orange, brown to cinnamon, pinks to greens, and of course many shades of red. Garnets are given as symbols of consistency, perseverance and …
