- Stone13
- Reports4













2.35 Ct. Green Cabochon Paraiba Tourmaline from Nigeria
This loose stone ships by Nov 11
Item ID: | K20045 |
|---|---|
Dimensions (MM): help | Length: 8.67 Width: 7.18 Height: 4.9 |
Weight: | 2.35 Ct. |
Color: help | Green |
Color intensity: help | Light |
Clarity: help | Included |
Shape: help | Oval |
Cut: | Cabochon |
Cutting style: | Cabochon |
Enhancements: help | Heat Treated |
Origin: help | Nigeria |
Per carat price: help | $2,571 |
This translucent Other certified Greenish Blue paraiba tourmaline weighs 2.35 carats and is fashioned into an elegant oval cabochon, with exact dimensions of 8.67 by 7.18 by 4.90 millimeters. The cabochon cutting style emphasizes a smooth domed crown and a well proportioned base, maximizing the gem's internal color distribution and the visual impact of its light color intensity. The cutting execution displays an excellent polish that enhances surface luster and tactile finish, while the cabochon form reduces vulnerability at facet junctions and conceals the included clarity when evaluated at eye level, allowing the pleasing color to remain the focal point. This specimen has been heat treated, a stable enhancement commonly applied to tourmaline to refine hue and reduce unwanted brown or gray modifiers, and its Nigerian origin contributes to the distinctive copper influenced greenish blue character that collectors seek.
From a durability standpoint this paraiba tourmaline is well suited to daily wear when mounted with appropriate protection, its inherent hardness on the Mohs scale of approximately seven to seven and a half providing good resistance to abrasion. Tourmaline typically exhibits indistinct cleavage rather than pronounced planes of weakness, and the cabochon architecture further mitigates impact stress by eliminating sharp facet edges, improving resistance to chipping in everyday use. For optimal longevity we recommend protective settings such as a full bezel or partial bezel with elevated gallery, which shield the girdle and edge while showcasing the domed crown, and firm prong settings that cradle the base can be used when combined with a low profile to minimize catch. Routine care entails avoiding sudden thermal shocks, strong acids, and prolonged exposure to high heat, ultrasonic cleaning should be used with caution given the included clarity and the heat treatment history, while warm soapy water and a soft brush are safe and effective for regular cleaning. The Natural Gemstone Company certifies this piece as a fine example of Nigerian paraiba tourmaline, offering both the technical documentation and practical mounting advice that discerning buyers require for confident everyday wear.
























