Opal
Fireworks. Jellyfish. Galaxies. Lightning. Opal’s shifting play of kaleidoscopic colors is unlike any other gem.


Taking a look at the rough opal that plays a major role in the Adam Sandler film “Uncut Gems.” What is the real gemology and source information of opals?
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Opal’s play-of-color is a lyrical dance: sometimes a grand jeté of bold, broad flashes of color or smaller, quicksteps of pinpoint flashes.
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GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems enter the market.
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Provides a visual guide to the internal features of natural, treated, synthetic, and imitation opal.
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Documents a visit to the sapphire, opal, and emerald mining and trading areas of Ethiopia.
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A boulder opal contained an unusual carpet of needle-like lepidocrocite inclusions along the interface between the opal and the ironstone matrix.
Read MoreNature gives us a brilliant palette of color-changing leaves and a spectacular kaleidoscope of colorful sunsets during the fall season.
Read MoreThe fashion trend of colorblocking can be found in the artistic combinations of color in multicolor gemstones known for their color zoning or banding.
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Delightful garden creatures and flowers are favorite subjects that transform beautifully into Victorian, Art Nouveau and modern jewelry designs.
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Jürgen Schütz discussed the opal sourcing and cutting activities of the German firm Emil Weis.
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