This is a stunning GIA Certified Star Sapphire
The GIA report reads as follows:
GIA Report Number: 2225841130
Shape: Oval
Cutting Style: Double Cabochon
Cutting Style: Crown:
Cutting Style: Pavilion:
Transparency: Semi-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: 10.83 carats
Measurements: 13.40 x 9.80 x 7.40 mm
Comments:
Internal notes and additional description:
Weight: 10.83 carats
Clarity: N/A
Colour: Blue
Hue: Blue
Tone: 5 Medium
Saturation: 4-5 Moderately Strong-Strong
Treatment: No Indications of Heating
Origin:
Notes: Displaying Asterism
Internal SKU: GIASS0004
Please quote SKU if you have any questions about this gem.