CGL Certified · CGL 883921
Unheated (no thermal treatment)
Field ProvenanceHighland Complex
Extracted directly from the alluvial gem-bearing gravels ('Illam') of Wewelwatta gem gravels in Ratnapura, Sri Lanka. Maintained under continuous single-custody chain since unearthing, preserving unheated rutile silk integrity.
Natural Corundum·sapphire
The Star of Ratnapura sapphire
4.8 ct · ROUND CUT · Royal asterism blue
Official Direct Acquisition Price
$7,200(approx. Rs. 2,196,000)
Complimentary insured worldwide courier shipping & physical original CGL laboratory certificate report included.
Certified Gemological Specifications
- Carat Weight
- 4.8 ct
- Faceting & Shape
- round cut
- Physical Dimensions
- 10.15 × 9.80 × 6.45 mm
- Color Grade
- Royal asterism blue
- Clarity / Transparency
- Translucent with dense rutile silk
- Thermal Enhancement
- Unheated (no thermal treatment)
- Origin
- Ratnapura, Sri Lanka
- Mining Deposit
- Wewelwatta gem gravels
- Lab Report
- CGL · CGL 883921
Curator Description
Natural unheated star sapphire displaying a sharp, centered 6-ray asterism that glides cleanly across the dome under directional point lighting.
