Size: 6.0mm
Colour: "Medium Denim" Sapphire 
Cut: Round Rosecut
Ethical Source: Malawi by Fair Trade Gems™

Sapphire is next to diamond on the hardness scale. It is a beautiful and durable stone that comes in a wide variety of colours from red, yellow, green, and the traditional blue. Ruby is simply a specific colour of Sapphire.