| Weight | 13.90 ct |
|---|---|
| Dimensions | 20.5 × 11 × 7.4 mm |
| Grade | Facet Grade |
| Variety | Sapphire Rough |
| Mining Location | Kuruwita village around mining in Sri Lanka |
| Treatment | unheated |
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Natural Unheated Vivid Royal Blue Sapphire Rough – 13.90 ct from Kuruwita Village, Sri Lanka
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Stone Identity & Quality
Stone Type: Natural Corundum
Variety: Royal Blue Sapphire
Weight: 13.90 carats
Dimensions: 20.5 × 11 × 7.4 mm
Treatment Status: Unheated
Quality Grade: Facet Grade Rough
Origin: Kuruwita village around mining in Sri Lanka
This is a large-size natural Ceylon sapphire classified as facet-grade rough suitable for professional evaluation and cutting.
Color & Visual Characteristics
The stone displays vivid royal blue coloration characteristic of Sri Lankan corundum. The saturation remains strong across the body of the crystal, maintaining visual depth even in rough form.
The elongated alluvial shaping reflects river transport origin while preserving workable cutting geometry.
Internal & External Features
Visible natural inclusions are present within the stone, consistent with alluvial sapphire formation. These inclusions should be carefully mapped during pre-cut evaluation.
Surface textures and minor growth features confirm natural origin and mining authenticity. Despite inclusions, the body color remains attractive and stable.
Cutting & Treatment Potential
This sapphire is unheated and untreated.
Due to visible inclusions, yield planning and orientation mapping will be critical before faceting. The size allows flexibility in design, including cushion, oval, or custom elongated cuts depending on internal evaluation.
No treatment outcomes are implied or guaranteed.
Source & Ethical Position
This sapphire is sourced directly from mining communities in Kuruwita village around mining in Sri Lanka — a historic region known for producing high-quality Ceylon sapphires.
Danushka Gems & Minings maintains transparent sourcing practices and evaluates each stone based on structural integrity, color stability, and realistic transformation potential.
Frequently Asked Questions
Yes, it is a natural unheated Ceylon sapphire from Kuruwita village around mining in Sri Lanka.
Yes, visible natural inclusions are present and must be considered during cutting.
No. It is currently unheated and untreated.
Clarity outcome depends on internal mapping and professional cutting decisions.
Kuruwita village around mining in Sri Lanka is recognized for producing structurally stable and strongly saturated blue sapphires.
