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"6.65 carat 7.32 ratti natural IIGJ certified Austrailian oval shape opal stone"
The 6.65-carat natural Australian opal, certified by the Indian Institute of Gemology (IIGJ), represents an extraordinary specimen of one of the most coveted gemstones in the world. This opal, with its weight of 7.32 ratti, is not only notable for its significant size but also for its exquisite oval cut, which enhances its remarkable play-of-color—a phenomenon that has captivated gem enthusiasts and collectors alike for centuries. The opal’s certification by IIGJ adds an additional layer of prestige and assurance, affirming the gemstone's authenticity and high quality. Australian opals are renowned globally for their exceptional beauty and the rich variety of colors they display, ranging from deep, vivid blues and greens to fiery reds, oranges, and even purples. These colors are a result of the opal’s unique internal structure, where silica spheres, organized in a regular pattern, diffract light to create a spectrum of hues that shift as the stone is moved. The 6.65-carat opal in question, with its substantial weight, offers a substantial canvas for this optical phenomenon, allowing for a more pronounced and dynamic display of its inherent colors.
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