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Chatham® Ruby Gemstone Information
Information * Loose gemstones * Jewelry links

Ruby is the birthstone for the month of July and the gemstone representing the 15th and 40th wedding anniversary. It is known as the stone of love and is capable of reconciling lover's quarrels. It was once believed that if worn in a ring on the left hand or in a brooch on the left side, it would give the magical ability to live in peace among enemies. This stone was once thought to ward off misfortune and ill-health.
Ruby is given as a symbol of success, devotion, integrity, health, and passion.


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: Good; may improve color
Chemicals that harm: Boron
Chatham ruby crystal growth image.

Ruby crystal growth.
Image Courtesy Chatham®.

Crystal Structure
Crystal system: Hexagonal (trigonal), prisms.

 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.
Chatham ruby brilliant cut image.
Brilliant cut.
Chatham ruby oval shape image.
Oval shape.

Chatham ruby marquise cut image.
Marquise cut.
Chatham ruby pear shape image.
Pear shape.
Chatham ruby emerald cut image.
Emerald cut.

Chatham ruby heart shape image.
Heart shape.
Chatham ruby trillion cut image.
Trillion cut.
Chatham ruby princess cut image.
Princess cut.
  Chatham ruby square step cut image.
Step cut.

Chatham ruby straight baguette image.
Straight Baguette.



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