Gemstone treatments refer to any processes or procedures applied to gemstones to enhance their appearance, durability, or market value. These treatments can range from simple, traditional methods to more complex and advanced techniques. Here are some common gemstone treatments:
- Heat Treatment: Heating gemstones is a widely used treatment to enhance color and clarity. It can remove or minimize certain inclusions, improve color saturation, and lighten or darken the stone. Heat treatment is commonly used for gemstones like sapphires, rubies, and tanzanite.
- Irradiation: This treatment involves exposing gemstones to various forms of radiation to alter their color. It can produce vibrant hues in gemstones such as blue topaz and yellow diamonds. Irradiation is often followed by heat treatment to stabilize the color.
- Diffusion: Diffusion treatments involve introducing chemicals or elements into the surface of a gemstone and then applying heat. This process creates a new color or enhances an existing color, typically along the surface layer. It is commonly used on corundum gemstones, like sapphires and rubies.
- Oil and Resin Treatments: Certain gemstones, such as emeralds, are often treated with oils or resins to enhance their clarity and appearance. This process fills surface-reaching fractures and enhances the gemstone's transparency.
- Fracture Filling: Gemstones with visible fractures or cavities may undergo fracture filling. This treatment involves filling the fractures with a glass-like substance to improve the gemstone's clarity and stability. It is commonly used on diamonds and rubies.
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