| Weight | 3.90 ct |
|---|---|
| Dimensions | 9.8 × 8.6 × 4.7 mm |
| Grade | Facet Grade |
| Variety | Sapphire Rough |
| Mining Location | Rambuka village around mining in Sri Lanka |
| Treatment | natural, unheated |
Facet Grade Unheated Ceylon Blue Sapphire Rough – 3.90 ct from Rambuka, Sri Lanka
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Stone Identity & Quality
This is a 3.90 ct Facet Grade Ceylon Natural Blue Sapphire Rough, measuring 9.8 × 8.6 × 4.7 mm. The stone is a natural unheated alluvial sapphire rough sourced from Rambuka village around mining in Sri Lanka. Its rounded alluvial form, blue color body, and practical rough structure make it suitable for custom cutting consideration by professional gem cutters and rough sapphire buyers.
Color & Visual Characteristics
The stone displays a blue sapphire body color with slightly darker surface areas and brighter blue translucent zones visible near the edges and under light. As with many natural alluvial sapphires, the full color result can only be understood properly after the cutter studies orientation, depth, and possible surface removal. The final cut appearance will depend on how the stone is positioned during cutting and how much material must be removed to improve polish and symmetry.
Internal & External Features
This sapphire shows natural alluvial surface features, including small pits, marks, and darker rough areas that are normal for uncut river-worn material. The internal structure is visible under light, and the stone should be studied carefully before cutting to understand transparency, inclusion position, color direction, and best yield. The rough has a wide face and moderate depth, giving design flexibility while still requiring careful planning.
Cutting & Treatment Potential
As facet grade rough, this sapphire has potential for a custom faceted gemstone or a special polished design depending on the buyer’s purpose. Possible cutting directions may include a custom fancy shape, low-profile cut, double-sided polish concept, or another design based on the cutter’s judgment. The stone is natural and unheated. No treatment result is guaranteed or overclaimed, and any final cutting decision should be made after proper physical inspection and planning.
Source & Ethical Position
This blue sapphire rough was sourced from Rambuka village around mining in Sri Lanka, a country respected worldwide for its natural Ceylon sapphires. Danushka Gems & Minings focuses on source-connected gemstones, offering natural rough stones, custom cutting guidance, and transparent gemstone transformation from Sri Lankan mining areas to finished gemstones.
Frequently Asked Questions
This Ceylon blue sapphire rough weighs 3.90 ct.
The stone measures 9.8 × 8.6 × 4.7 mm.
No, this sapphire is natural and unheated.
It is sourced from Rambuka village around mining in Sri Lanka.
Yes, it is facet grade rough with custom cutting potential, but the final design should be decided after studying depth, orientation, surface features, and internal structure.
