This is a stunning GIA Certified Star Sapphire
The GIA report reads as follows:
GIA Report Number: 2225841118
Shape: Oval
Cutting Style: Double Cabochon
Cutting Style: Crown:
Cutting Style: Pavilion:
Transparency: Transparent
Color: Blue
RESULTS
Species: Natural Corundum
Variety: Natural Star Sapphire
Geographic Origin: Not Requested
Treatment: No Indications of Heating
Item Description: One loose stone
Weight: 5.1 carats
Measurements: 9.35 x 8.01 x 6.46 mm
Comments:
Internal notes and additional description:
Weight: 5.1 carats
Clarity: N/A
Colour: Blue
Hue: Blue
Tone: 4 Medium Light
Saturation: 4 Moderately Strong
Treatment: No Indications of Heating
Origin:
Notes: Displaying Asterism
Internal SKU: GIASS0002
Please quote SKU if you have any questions about this gem.
