With its deep blue colour, sapphire represents the essence of calmness and wisdom. Its colour is the result of a complicated process based on the properties of aluminum. 

Origin: Eastern Australia, Thailand, Sri Lanka, China, Madagascar, East Africa.

Significance: 

Sapphire is the birthstone for the month of September. 

Sapphire is the anniversary gemstone for the 5th, 45th and 70th anniversaries.