know the size
- 1. Select an existing ring that fits the desired finger.
- 2. Measure the internal diameter of the ring in mm.
- 3. Select the diameter below to determine your ring size.
| Alternate Names: | Neelam |
| Mineral Family: | Corundum |
| Chemical Composition: | Al?O? |
| Crystal System: | Trigonal |
| Mohs Hardness: | 9 |
| Specific Gravity: | 4.00 |
| Refractive Index: | 1.76–1.77 |
| Transparency: | Transparent to Translucent |
| Luster: | Vitreous |
| Color Range: | Light Blue to Royal Blue |
Geological Formation: Formed under extreme pressure deep within Earth's mantle.
Major Mining Locations: Russia, Botswana, Canada, South Africa, Australia.
Country of Origin: Found globally.
Historic Sources: India was the earliest known source.
Famous Mines: Cullinan Mine, Jwaneng Mine.
Natural vs Treated Varieties: Natural, HPHT-treated, fracture-filled.
Geological Age: 1–3.5 billion years.
Visual Characteristics: Exceptional brilliance and fire.
Inclusion Patterns: Crystals, feathers, clouds.
Diagnostic Features: Highest natural hardness.
Common Imitations: Cubic Zirconia, Moissanite.
How to Identify Genuine Stone: Certified grading report and thermal conductivity testing.
Difference from Similar Gemstones: Greater brilliance and hardness than simulants.
Different Varieties: White Diamond, Fancy Colored Diamond, Black Diamond.
Color Variations: Colorless to vivid fancy colors.
Quality Grades: D–Z color scale and FL–I clarity scale.
Rare Specimens: Red and Pink Diamonds.
Commercial Classifications: Natural, Lab-Grown, Treated.
Associated Planet: Saturn (Shani)
Zodiac Signs: Capricorn, Aquarius
Birth Month: September
Recommended Metal: Silver, Panchdhatu
Recommended Finger: Middle Finger
Recommended Day: Saturday
Recommended Weight: 4–6 Carats
Chakra Association: Third Eye Chakra.
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