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Fine Jewelry University Articles matching: “Process cut 2 carat solitao”

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Gem in the Spotlight: Aquamarine

FJU Category: Gemstones | Tags: Aquamarine, Birthstones, Colored Gemstones, Folklore, Gem Spotlight, Gemology

… ever mined was 19 inches long. The largest cut aquamarine is named the Dom Pedro and is an astounding 10,363 carats. It measures 14 inches long and is currently on display in the Smithsonian. Another famous aquamarine is the incredible …. Aquamarine has a refractive index of 1.577 to 1.583 and is doubly refractive. Aquamarine’s specific gravity is 2.72 and it has a Mohs hardness of 7.5-8.0. For comparison, this means that it is softer than Sapphire, harder than Quartz…
Gem in the Spotlight: Tanzanite

FJU Category: Gemstones | Tags: Gem Spotlight, Gemology, Tanzanite, Zoisite

… Gems The Mawenzi Tanzanite is the largest rough tanzanite in the world, weighing around 6 pounds (over 13,000 carats!). Discovered in 2005, it has dimensions of 218.44x 80.01 x 71.12 mm. Its name is inspired by the second-highest peak of … value of tanzanite are its hue and how deep the color is. Less important, but still part of the equation, are the cut and clarity. As with all colored gems, the value of tanzanite comes from its color. Tanzanite has a Moh’s hardness of …