| Weight | 10.10 ct |
|---|---|
| Dimensions | 14.6 × 9.5 × 6.3 mm |
| Grade | Facet Grade |
| Variety | Spinel |
| Treatment | natural, unheated |
| Mining Location | Ratnapura village around mining in Sri Lanka |
| Color | violet-to-pinkish shift under different lighting conditions |
10.10 ct Natural Ceylon Steel Blue Spinel Rough – Unheated Clean Alluvial Spinel from Ratnapura
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Stone Identity & Quality
This is a 10.10 ct natural Ceylon spinel rough measuring 14.6 × 9.5 × 6.3 mm, sourced from Ratnapura village around mining in Sri Lanka.
The stone is natural and unheated, with a clean internal appearance and a rounded alluvial form. It is classified as facet-grade rough because the material shows useful transparency, good cleanliness, and a shape suitable for professional cutting evaluation.
Color & Visual Characteristics
The principal body appearance is steel blue.
Depending on the light source and viewing direction, the stone also shows a subtle movement toward violet and slightly pinkish tones. This is best described as a mild color shift rather than a dramatic full color change.
Under cooler or neutral illumination, the steel-blue character is more apparent. Under warmer lighting, softer violet or pinkish nuances may become more visible.
This lighting response gives the rough additional visual interest while maintaining its blue-dominant identity.
Internal & External Features
One of the strongest characteristics of this rough is its very clean internal appearance.
The stone also preserves a naturally rounded alluvial surface, indicating natural transport and abrasion before recovery.
Important cutting observations include:
– very good internal cleanliness
– useful depth
– rounded alluvial shape
– limited need for aggressive reshaping
– subtle color-shift behavior
– good transparency
– practical potential for efficient recovery
Small natural surface marks remain visible on the rough and should be considered during preforming.
Cutting Potential
The natural alluvial shape is particularly favorable for cutting.
Because the rough already has a relatively efficient elongated-rounded outline, a cutter may be able to preserve more of the original material compared with a rough stone that requires heavy trimming.
The final shape should be selected according to:
– internal orientation
– available pavilion depth
– color concentration
– desired symmetry
– face-up dimensions
– practical weight retention
Possible finished designs could include oval, cushion, modified oval, or another custom shape that follows the natural outline, but no specific finished shape or weight should be promised before preforming.
The overall objective would be to preserve the attractive steel-blue appearance, maintain the clean internal character, and achieve a balanced finished stone with strong practical recovery.
Source & Ethical Position
Danushka Gems & Minings works directly around Sri Lanka’s gemstone-producing regions and regularly sources natural rough from miners, mine owners, source buyers, and established local suppliers.
We present rough gemstones according to their actual characteristics rather than estimating unrealistic finished outcomes.
For this spinel, the important qualities are its natural untreated status, clean body, favorable alluvial shape, and observable color behavior under different lighting.
Customers can contact us for further details, professional cutting evaluation, or custom cutting arrangements where suitable.
Frequently Asked Questions
The stone weighs 10.10 ct.
It measures 14.6 × 9.5 × 6.3 mm.
No. It is presented as a natural unheated spinel.
It shows a subtle color shift, moving from steel blue toward violet and slightly pinkish tones under different lighting conditions.
Yes. It is facet-grade rough with a very clean internal appearance and a favorable alluvial shape, although final yield and shape must be confirmed during cutting.
