1. Physical Properties
Ruby is the red variety of corundum, colored by trace amounts of chromium. It ranks 9 on the Mohs scale, second only to diamond in hardness. The most prized color is 'pigeon blood red' — a vivid, slightly bluish-red with strong fluorescence under UV light that gives Burmese rubies their legendary inner glow. Rubies typically contain inclusions (rutile silk) that can create a sought-after asterism (star effect) when cut as cabochons. The finest rubies are transparent with saturated, uniform color.
2. Spiritual Meaning
Ruby has been revered as the 'King of Gems' across cultures. It symbolizes passion, courage, vitality, and the fire of life. Ruby is believed to ignite motivation, increase energy levels, and promote a positive, courageous mindset. It stimulates the Root Chakra, grounding the wearer while enhancing life force. In relationships, ruby deepens love and commitment, bringing emotional warmth. Warriors in ancient Burma embedded rubies into their skin, believing it made them invincible in battle.
3. History & Lore
Rubies have been treasured for over 2,000 years, mentioned in the Bible and Sanskrit texts. The Mogok Valley in Myanmar has produced the world's finest rubies since the 6th century. In medieval Europe, rubies were worn by royalty to guarantee health, wealth, wisdom, and success in love. The 170-carat 'Sunrise Ruby' sold for $30.3 million in 2015, setting a record for any colored gemstone not a diamond.
4. Origins & Mining
Major mining locations: Myanmar (Burma) · Thailand · Sri Lanka · Mozambique · Madagascar
5. Birthstone & Zodiac
Birthstone for: July (七月)
Zodiac: Cancer, Leo
6. Chakra & Energy
Associated Chakra: Root/Heart
7. Care & Maintenance
Rubies are durable (hardness 9) and suitable for daily wear. Clean with warm soapy water or ultrasonic cleaner. Avoid harsh chemicals and steam cleaning for heavily included stones. Store separately to prevent scratching softer gems.
8. Value & Quality Factors
The most important factor is color — vivid, saturated 'pigeon blood' red commands the highest prices. Clarity matters less than in diamonds; eye-clean rubies are rare. Heat treatment is common and accepted; unheated rubies carry a significant premium. Burmese origin typically commands the highest prices.
9. Famous Examples
The 170-carat 'Sunrise Ruby' is the world's most expensive ruby. The 'Carmen Lúcia Ruby' (23.1 carats) at the Smithsonian showcases exceptional Burmese quality. The 'Rosser Reeves Star Ruby' (138.7 carats) displays a perfect six-ray star.