Ruby
Ruby is a precious gemstone known for its deep red color, symbolizing passion, power, and vitality. It is one of the most valuable gemstones and has been cherished for centuries in royal jewelry and astrological practices.
About
Ruby
Ruby is the red variety of the mineral corundum, with its color caused by trace amounts of chromium. Among all colored gemstones, fine-quality ruby commands the highest prices due to its rarity and intense color. Historically associated with royalty, courage, and protection, ruby has been worn as a talisman and used in ceremonial ornaments across cultures. Its exceptional hardness and durability make it ideal for fine jewelry and daily wear.
Physical & Chemical Properties
| Name | Ruby |
|---|---|
| Scientific Name | Corundum |
| Mineral Group | Oxide (Corundum Group) |
| Hardness (Mohs) | 9.0 |
| Color | Pinkish Red |
| Origin | Myanmar (Burma), Sri Lanka, Thailand, Mozambique, and Madagascar. |
| Chemical Formula | Al₂O₃ (Aluminum Oxide with Chromium) |
Quick Facts
| Crystal System | Trigonal |
|---|---|
| Specific Gravity | 3.97 – 4.05 |
| Birthstone | July |
| Refractive Index | 1.762 – 1.770 |
| Optical Character | Uniaxial (–) |
| Dispersion | 0.018 |
| Major Sources | Myanmar (Burma), known for the finest quality; Mozambique, a modern source of high-quality supply; along with Sri Lanka, Thailand, and Madagascar. |
| Treatments | Heat treatment (very common), flux healing, and glass filling |
| Common Enhancements | Heat enhancement to improve color and clarity |
| Price Range | ₹3,000 - ₹10,00,000+ |
| Durability | Excellent durability |
| Care Instructions | Clean using mild soap and lukewarm water, gently brushing if required. Avoid harsh chemicals and ultrasonic cleaners, especially for treated stones, and store separately to prevent scratching softer gemstones. |