Description
10 x 5/ 9 x 4.5/ 8 x 4/ 7×3.5 mm Marquise Faceted AA Blue Sapphire
Specifications
| Weight: | 1.4 CT/ 1.1 CT/ 0.75 CT/ 0.52 CT |
| Color: | Blue |
| Selling Unit of Measure: | ct |
| Gemstone Quality: | AA |
| Gemstone Quality Description: | Medium navy to royal blue; eye clean; good brilliance; good cut; good polish |
| Stone Enhancement Code: | H |
| Month for Birthstone: | September |
| Stone Hardness: | 9 |
| Gem Species: | Corundum |
| Stone RI: | 1.762-1.77 |
| Stone Specific Gravity: | 4.00 |
| Stone Optic Character: | DR |
| Stone Phenomena: | Asterism, Color Change, Chatoyancy (very rare) |
| Stone Ultrasonic Reaction: | Usually safe |
| Steamer Reaction: | Usually safe |
| Heat Reaction: | Poor-may sometimes improve color, but may cause loss of color |
| Chemical Reaction: | Solutions containing Borax |
| Major Sources: | Australia, Cambodia, East Africa, India, Kashmir, Myanmar, Sri Lanka, Thailand, United States |
| mm Size: | 10 x 5/ 9 x 4.5/ 8 x 4/ 7 x 3.5 |
