6x4mm Natural Blue Sapphire 0.82 Carats Oval Cut Heated Corundum, Unmounted Gem Faceted Loose Gemstone, US seller

Natural Sapphire (Corundum)
Measurements: 6.1 x 4.2 mm, 3.3 mm deep
Weight: 0.82 carats
Color: Medium Blue
Cut: Oval
Clarity: Type II SI1; Slightly Included - has surface reaching inclusion on the back of stone, pictures did not capture this
Condition: Good
Treatment(s): Heat Only
Origin: Madagascar