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Há 5 dias · Trapiche Gems. Wim Vertriest. Download PDF. Figure 1. A pair of trapiche emerald slices from Colombia, 10.92 carats total. Photo by Kevin Schumacher; courtesy of Mayer & Watt. Jeffery Bergman is known in the trade as a collector of trapiche gems. These gems, characterized by their six-rayed patterns, are elusive and seldom found in high quality.
Há 5 dias · Coloured gems offer a plethora of hues, varieties and cuts, and provide a level of individuality that rivals Diamond (despite each being unique to the next). Stones that render a personal significance, like birthstones, are in demand for a reason, and more people are also looking to the spiritual and metaphysical properties of gemstones to find ...
Há 4 dias · Topaz is allochromatic, which means that its color is caused by impurity elements or defects in its crystal structure rather than by an element of its basic chemical composition. The element chromium causes natural pink, red, and violet-to-purple colors in topaz. Imperfections at the atomic level in topaz crystal structure can cause yellow ...
Há 5 dias · Peridot History and Lore. This 146.10-carat peridot is in the collection of the Natural History Museum in London. Peridot has always been associated with light. In fact, the Egyptians called it the “gem of the sun.”. Some believed that it protected its owner from “terrors of the night,” especially when it was set in gold.
Há 2 dias · Flexible Payment Options. A dazzling gemstone cluster of pink and yellow sapphires, a sparkling morganite, and a glittering diamond catch the eye in this playful and chic pendant. Available in 14K Rose Gold.
Há 1 dia · Like all mollusks, oysters require calcium carbonate—a mineral abundant in both sea and on land—to form pearls. When foreign matter enters an oyster's shell, it triggers a fascinating response. The animal begins secreting nacre—layers of which will enrobe the irritant and eventually develop into a pearl.
Há 4 dias · If so, your knowledge on laboratory-grown diamonds is vital. Welcome to The Gem Academy, your ultimate resource for comprehensive education and reliable identification advice. Explore engaging online courses, immersive hands-on workshops, and personalised one-to-one consultancy sessions. With guidance from industry expert Julia Griffith, you'll ...
