| Chatham® Blue Sapphire Gemstone Information Information * Loose gemstones * Jewelry links Blue Sapphire is the birthstone for the month of September and the gemstone representing the 5th and 45th wedding anniversaries. The ancients believed sapphires influenced spirits, guarded against unchastity, made peace between enemies, and protected them from capture. They were also thought to clear the mind and skin, cure fevers, colds, eye diseases, and ulcers. Sapphire is a longtime symbol and guardian of purity, and it represents truth, sincerity, and consistency. |
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ENHANCEMENT CODE H Click to view AGTA code. PROPERTIES Refractive Index 1.762-1.77 Hardness = 9 (Moh's Scale) Specific Gravity =4.0 Species - Corundum Optic Character - Double Refraction. Phenomena - Chatoyancy (Very Rare) WARNINGS FOR CARE Ultrasonic: Usually Safe Steamer: Usually Safe Heat: Poor; may sometimes Improve color, but may cause loss of color Chemicals that harm: Borax |
Sapphire crystal growth. |
Birthstones | ||
| January | Garnet | |||
| February | Amethyst | |||
| March | Aquamarine | |||
| April | Diamond | |||
| May | Emerald | |||
| June | Pearl/Alexandrite | |||
| July | Ruby | |||
| August | Peridot | |||
| September | Sapphire | |||
| October | Opal/Tourmaline | |||
| November | Topaz or Citrine | |||
| December | Blue Topaz or Zircon | |||
| Common Cut Examples. |
