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A diamond’s journey towards the Earth’s surface can result in remarkably familiar shapes.
Discover the science behind some of the most popular phenomenal gemstones.
Small, bead-nucleated freshwater pearls marketed as “akoyas” could cause confusion and mislead consumers.
Easy, step-by-step guide to how GIA analyzes pearls in its laboratory.
Easy, step-by-step guide to how GIA analyzes colored gemstones in its laboratory.
Quick how-to guide for retailers to test gemstone fluorescence and help identify stones in their own stores.
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