| Weight | 5.75 ct |
|---|---|
| Dimensions | 15 × 7.2 × 6.1 mm |
| Grade | Facet Grade |
| Variety | Sapphire Rough |
| Mining Location | elahera village around mining in Sri Lanka |
| Treatment | natural, unheated |
5.75 ct Facet Grade Ceylon Geuda Sapphire Rough – Unheated Elahera Sri Lanka
Spread the Love
Stone Identity & Quality
This is a natural facet-grade Ceylon geuda sapphire rough weighing 5.75 ct and measuring 15 × 7.2 × 6.1 mm.
The stone is currently unheated and was sourced from Elahera village around mining in Sri Lanka.
It retains a natural alluvial rough form with good usable depth and areas suitable for professional cutting evaluation. As geuda sapphire, the stone may also be considered for controlled heat-treatment evaluation by experienced specialists.
Color & Visual Characteristics
Under the shown lighting, the sapphire displays a pale bluish body color.
The appearance changes slightly depending on viewing direction, stone thickness, and transmitted light. Some areas show stronger transparency, while others reveal more internal structure.
Because this is natural rough geuda sapphire, its final face-up color after cutting—or after any future heat treatment—cannot be predicted with certainty.
Internal & External Features
The stone shows:
natural alluvial surface wear
irregular rough contours
internal natural features
transparent to translucent zones
varying color concentration
visible structural characteristics associated with natural rough sapphire
These features should be examined carefully before deciding the final cutting orientation or any treatment plan.
Cutting, Specimen, or Treatment Potential
At 5.75 ct with dimensions of 15 × 7.2 × 6.1 mm, this rough provides useful material for professional cutting evaluation.
A cutter should study:
the cleanest internal direction
color concentration
inclusions and surface-reaching features
available pavilion depth
possible final face dimensions
expected weight retention
As geuda sapphire, the material may also be evaluated for professional heating. Certain geuda sapphires can respond to heat treatment, sometimes producing stronger color or improved transparency, but this process is highly dependent on the individual stone.
No specific heated color, clarity improvement, finished weight, or recovery percentage can be guaranteed.
Source & Ethical Position
Danushka Gems & Minings works directly around Sri Lankan gemstone-producing areas and regularly sources rough stones through miners, mine owners, local buyers, and source dealers.
Our approach is based on honest evaluation, practical cutting discussion, source transparency, and realistic treatment expectations.
For geuda sapphire, we avoid promising a specific heated result. Instead, we present the stone’s current characteristics and allow professional cutters and treatment specialists to make informed decisions.
Frequently Asked Questions
It is a natural Ceylon geuda sapphire rough.
The rough weighs 5.75 ct and measures 15 × 7.2 × 6.1 mm.
It was sourced from Elahera village around mining in Sri Lanka.
No. It is currently presented as unheated natural geuda sapphire.
It may be considered for professional heat-treatment evaluation, but the final color change cannot be guaranteed because each geuda sapphire reacts differently.
