RUBY

RATNARAJ

In Sanskrit, ruby is ratnaraj, meaning the king of gems.

MOGOK

Myanmar’s legendary valley of rubies; the source of many of the world’s most fabulous gems.

$32.4 MILLION

On May 12, 2015, a 25.59-carat ruby ring sold for $1,266,901 per carat, setting a new record at auction for a colored gemstone.

FACTS

• Mineral: Corundum
• Chemical composition: Al₂O₃
• Color: Red
• Refractive index: 1.762 to 1.770
• Birefringence: 0.008 to 0.010
• Specific gravity: 4.00 (+/- 0.05)
• Mohs Hardness: 9

source:gia.edu