Iranian Neyshabur Turquoise old layers Stabilized only weight 13.25 ct
Note on Stabilization and Color Behavior
Stabilizing turquoise is a widely practiced technique used to enhance the stone’s durability and resistance to moisture. This process typically involves infusing the porous structure of natural turquoise with resins or other hardening agents, helping to prevent discoloration, cracking, and water absorption over time.
Historically, stabilization methods—especially in regions like Iran—were less advanced than those used today. As a result, older turquoise may show varying degrees of treatment depending on when and how it was processed.
This particular stone has been stabilized to improve its hardness and preserve its color. The fact that its color has remained unchanged over the years suggests that the outer surfaces were effectively treated. However, whether the stabilization penetrated fully into the interior of the stone is unknown. In some cases, older turquoise has shown complete stabilization throughout, while in others, the treatment was only superficial—something that becomes evident only when the stone is cut.
For pieces like this one, which retain their original hand-shaped form from traditional Iranian craftsmanship, we rely on external characteristics. While the outer layer shows signs of stabilization, the internal structure remains unverified. We share this to ensure full transparency: this is a natural turquoise that has been stabilized, but the depth and completeness of that treatment cannot be guaranteed without cutting the stone.
Additional Note: Natural turquoise that has not been fully stabilized will naturally change color over time. This is a normal and expected process. The stone can be affected by skin oils, environmental humidity, and everyday chemicals such as shampoo, perfume, or cleaning products. These interactions may cause the turquoise to shift in tone—often developing a greenish hue—especially in areas with frequent exposure. This behavior is part of the stone’s organic character and is valued by many collectors for its evolving beauty.
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