| Weight | 8.65 ct |
|---|---|
| Dimensions | 13.5 × 10.8 × 6.2 mm |
| Grade | Facet Grade |
| Variety | Sapphire Rough |
| Treatment | unheated |
| Mining Location | Ratnapura village around mining in Sri Lanka |
8.65 ct Facet Grade Ceylon Sapphire Rough – Heating Type Sapphire from Ratnapura, Sri Lanka
Stone Identity & Quality
This natural sapphire rough weighs 8.65 carats and measures 13.5 × 10.8 × 6.2 mm. It originates from Ratnapura village around mining in Sri Lanka, a globally recognized source of Ceylon sapphires. The stone displays a high-quality alluvial form and belongs to the facet-grade category suitable for lapidary cutting.
Color & Visual Characteristics
In its natural unheated state, the sapphire shows a pale translucent appearance with subtle internal color presence. Stones of this type are commonly classified as heating-type sapphires, meaning they have the potential to develop more vivid coloration after controlled heat treatment.
Internal & External Features
The rough surface exhibits natural alluvial wear typical of Sri Lankan river-borne sapphire deposits. Internally the stone shows semi-transparent areas and natural geuda consistent with untreated corundum crystals formed in metamorphic geological environments. These internal characteristics help lapidaries determine the optimal cutting orientation.
Cutting & Treatment Potential
Sapphires from this category are often selected by cutters and heat specialists because their internal chemistry may respond well to heat treatment. When properly heated, stones of this type can sometimes produce attractive greenish-blue or teal sapphire colors. The final outcome depends on internal composition, orientation, and heating conditions.
Source & Ethical Position
This sapphire was sourced from Ratnapura village around mining in Sri Lanka, a region historically known as the “City of Gems.” The stone comes from traditional alluvial mining areas where sapphire crystals are recovered from natural gem-bearing gravels.
FAQ
1. Is this sapphire natural?
Yes, this is a natural Ceylon sapphire rough sourced from Sri Lanka.
2. Has the stone been heat treated?
No. The sapphire is currently unheated.
3. What does “heating-type sapphire” mean?
It means the stone has characteristics that may respond to heat treatment and potentially develop stronger color.
4. Can this stone be faceted?
Yes. The stone is considered facet grade and suitable for lapidary cutting depending on orientation.
5. What colors can appear after heating?
Material of this type may produce greenish-blue or teal sapphire tones, although results can vary depending on the stone.
