| Weight | 6.33 ct |
|---|---|
| Dimensions | 13.1 × 8.4 × 6.4 mm |
| Grade | Facet Grade |
| Variety | Sapphire Rough |
| Shape | Alluvial shape |
| Treatment | unheated |
| Mining Location | Kalawana village around mining in Sri Lanka |
Natural Facet Grade Blue Sapphire Rough – 6.33 ct from Kalawana Village, Sri Lanka
Stone Identity & Quality
Stone Type: Natural Corundum (Blue Sapphire)
Weight: 6.33 carats
Dimensions: 13.1 × 8.4 × 6.4 mm
Treatment Status: Unheated
Quality Grade: Facet Grade Rough
Origin: Kalawana village around mining in Sri Lanka
This natural blue sapphire rough is classified as facet-grade material suitable for professional faceting after structural evaluation and orientation planning.
Color & Visual Characteristics
The stone displays a natural blue body tone with moderate to good color concentration. The alluvial shape indicates natural river-worn formation, typical of Sri Lankan sapphire deposits.
Under directional light, the sapphire shows depth and internal compactness rather than surface-only coloration. The proportions provide flexibility for potential cushion or oval cutting styles depending on internal zoning.
Internal & External Features
Internally, the sapphire appears structurally dense with typical growth features expected in Sri Lankan corundum. No visible large structural fractures affecting the main cutting area are observed externally.
Externally, the surface retains natural mining abrasions and alluvial texture, confirming direct mining origin integrity.
The depth of 6.4 mm offers sufficient pavilion planning space for balanced brilliance and yield control.
Cutting & Treatment Potential
This sapphire is currently unheated. Any treatment decisions should be evaluated professionally after internal inspection.
The natural shape allows orientation flexibility, supporting potential for balanced faceting. Final performance will depend on cutting precision, angle control, and preservation of body color.
Danushka Gems & Minings evaluates structure, proportion, and geological behavior before making cutting recommendations.
Source & Ethical Position
This sapphire is sourced directly from mining communities in Kalawana village around mining in Sri Lanka. We work closely with local miners, ensuring transparency, traceability, and direct origin access.
Our approach prioritizes responsible sourcing and structural evaluation rather than unrealistic projection.
FAQ
1. Is this sapphire natural?
Yes, this is a natural unheated blue sapphire from Kalawana village around mining in Sri Lanka.
2. What does facet grade mean?
Facet grade indicates the rough contains workable areas suitable for professional faceting.
3. Is the stone treated?
No. It is currently unheated.
4. What cutting shape is suitable?
The alluvial shape supports cushion or oval planning, depending on internal orientation.
5. Why is Kalawana origin important?
Kalawana village around mining in Sri Lanka is known for producing stable, structurally compact corundum suitable for fine faceting.
