Mogok Valley
📍 Mandalay Region, Myanmar · 22.9190°, 96.1230°
The 2000-year-old "Valley of Rubies" produces the benchmark pigeon-blood red with strong fluorescence. Mogok stones typically show syrupy color zoning, rutile silk and calcite veins — features labs use to certify unheated origin. Mining now tightly state-controlled.