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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.

Click to view AGTA code.

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)


Ultrasonic: Usually Safe
Steamer: Usually Safe
Heat: Poor; may sometimes Improve color, but may cause loss of color
Chemicals that harm: Borax


Crystal Structure
Blue sapphire crystal image.
Crystal system: Hexagonal (trigonal), dipyramidal, barrel and tabloid shape.

Australia, Thailand, Sri Lanka, Myanmar, India, Kampuchea, Kenya, Tanzania, US, Madagascar
 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.

Antique cut blue sapphire.
Antique Cut.
Not in store.
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Antique Cushion blue sapphire.
Antique cushion.
Submit Quote Request
Oval shape blue sapphire.
Oval shape.
Emerald cut blue sapphire.
Emerald cut.
Round cut blue sapphire.
Round cut.
Heart shape blue sapphire.
Heart shape.
Marquise cut blue sapphire.
Marquise cut.
Pear shape blue sapphire.
Pear shape.

Princess cut blue sapphire.
Princess cut.
Step cut.
Trillion cut blue sapphire.
Trillion cut.
Straight baguette blue sapphire.
Straight Baguette.
Tapered baguette blue sapphire.
Tapered Baguette.
Round cabochon blue sapphire.
Round cabochon.

Oval cabochon blue sapphire.
Oval cabochon.


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