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4.25 mm Round Diamond-cut AA Umba Sapphire. Item #ACC625162

$203.20

Genuine Sapphire

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4.25 mm Round Diamond-cut AA Umba Sapphire

Specifications

Weight: 0.378 CT
Color: Orange, Pink
Selling Unit of Measure: ea
Gemstone Quality: AA
Stone Enhancement Code: N
Month for Birthstone: September
Stone Hardness: 9
Gem Species: Corundum
Stone RI: 1.762-1.77
Stone Specific Gravity: 4.00
Stone Optic Character: DR
Stone Phenomena: Asterism, Color Change, Chatoyancy (very rare)
Stone Ultrasonic Reaction: Usually safe
Steamer Reaction: Usually safe
Heat Reaction: Poor-may sometimes improve color, but may cause loss of color
Chemical Reaction: Solutions containing Borax
Major Sources: Australia, Cambodia, East Africa, India, Kashmir, Madagascar, Myanmar, Sri Lanka, Tanzania, Thailand, United States
Metal Option