Gem Treatments & Enhancements
Processes that alter color, clarity, or stability. Covers disclosure standards, durability impacts, and how treatments affect pricing.
Universal Glossary
40 entries-
Annealing
Learn about gemstone annealing, a heat treatment process that improves durability and sometimes color. Understand how it works, its pros and cons, and what to look for when buying.
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Assaying
Understand gemstone assaying: the scientific process of identification, quality assessment, and value determination. Learn what to look for when buying gems.
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Beryllium Diffusion
Learn about beryllium diffusion, a heat treatment process that creates vibrant colors in gemstones like topaz. Explore how it works, its pros and cons, and buying advice.
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Bleaching
Learn about gemstone bleaching, a common enhancement technique. Understand how it works on pearls, coral, and more, its impact on value, and what buyers need to know.
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Bleaching Enhancement
Learn about gemstone bleaching, a common enhancement process for pearls and other gems. Understand how it works, its pros and cons, and what to look for when buying.
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Calibré
Learn about Calibré gemstones: precision cutting, common types, history, value factors, and care for these standardized gems used in intricate jewelry designs.
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Calibré Cut
Discover the Calibré cut: learn how these precisely shaped gemstones create seamless designs, their history, value factors, and buying tips for unique jewelry.
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Clarifying
Learn about clarifying gemstone treatments like heating, irradiation, and filling, how they affect value and care, and what buyers need to know.
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Coating
Learn about gemstone coating, a surface treatment to enhance color, brilliance, and durability. Understand its impact on value, care, and what buyers need to know.
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Cobalt Diffusion
Learn about cobalt diffusion, a heat treatment that colors gemstones like sapphire. Discover how it works, its value, and what buyers need to know.
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Coloring
Learn about gemstone coloring treatments, including dyeing, diffusion, and heating. Understand how they affect value, durability, and what buyers need to know.
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Dyeing
Learn all about gemstone dyeing, a common enhancement process. Discover how it works, which gems are dyed, its impact on value, and essential care tips.
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Enameling
Discover the art of enameling in jewelry. Learn about techniques like cloisonné, champlevé, and plique-à-jour, their history, care, and how they enhance gemstones.
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Fracture Filling
Learn about fracture filling in gemstones: how it improves clarity, types of fillers (resin, glass, oil), care, value impact, and what buyers need to know.
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Glass Filling
Learn about glass filling, a common gem enhancement technique for emeralds and other stones. Understand its impact on clarity, durability, value, and what buyers need to know.
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HPHT Treatment
Learn about HPHT treatment for diamonds: how it works, its impact on color and clarity, value, and what buyers need to know. Full guide.
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Heat Treatment
Learn about heat treatment for gemstones: how it enhances color and clarity, affects value, industry standards, and what to know when buying treated gems.
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Irradiation
Learn about irradiation, a common gemstone treatment. Discover how it works, which gems are treated (like blue topaz and diamonds), its impact on value, and what buyers need to know.
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Laser Drilling
Learn about laser drilling, a gem enhancement technique using lasers to improve clarity by treating internal inclusions. Understand its impact on value, care, and buying.
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Lattice Diffusion
Understand lattice diffusion, a gemstone enhancement process altering color by infusing elements into the crystal structure. Learn about sapphires, value, and care.