Sapphire
Ceylon Grey-Blue Star Sapphire
- Origin
- Ratnapura
- Carat
- 8.40 ct
- Colour
- Greyish Blue
- Certificate
- NGJA
$12,200
Quick view
Oval Cabochon · Honey Gold
ChrysoberylCymophane
Ceylon Cat's Eye Chrysoberyl
A sharp, milk-and-honey chatoyant eye that opens and closes across the dome as the stone turns.
$21,500
Available · 5.75 ct
Specifications
- Gem type
- Chrysoberyl · Cymophane
- Carat weight
- 5.75 ct
- Origin
- Ratnapura, Sri Lanka
- Colour
- Honey Gold
- Cut
- Oval Cabochon
- Clarity
- Translucent
- Treatment
- Unheated
- Dimensions
- 11.05 × 9.32 × 6.88 mm
- Certification
- NGJA · NGJA-2025-11284
- Report issued
- 1 December 2025
The stone
Chatoyancy comes from parallel needle inclusions of rutile that reflect a single band of light across the dome. In the finest cat's eyes that band is razor sharp, centred, and mobile.
This 5.75 carat cabochon shows the classic 'milk and honey' effect: under a single light source one half of the stone reads golden and the other milky, with the eye running cleanly between them.
Ceylon has produced the world's reference cat's eye chrysoberyl since the nineteenth century, and Ratnapura remains its source.
- Unheated
- Chatoyant
- Cabochon
- Collector Grade
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