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The demand for gemstones is increasing, and fake gemstones are becoming a prominent and difficult-to-tackle problem in the jewelry and gemstone industries. Synthetic, fake, and enhanced gemstones can ...
Since ancient times, gemstones have been mined and traded across the globe, sometimes traveling continents from their origin. Gems are geologically defined as minerals celebrated for beauty, strength, ...
In a country celebrated for producing some of the world’s finest gemstones, Sri Lankan gemologist Rewatha Milinda Edirisinghe now says the future of gemstone testing must move beyond traditional ...
Accurate gemstone classification is critical in gemology for authentication and identification. This study presents a novel one-class classifier using self-organizing maps (SOMs), combined with Monte ...
Spectroscopy was first used for studying minerals and gems soon after Isaac Newton attempted to separate sunlight into its component colors with the help of a prism. By the mid-1800s, researchers ...
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