This is a beautiful green Australian sapphire. With a hardness of 9/10, sapphires are very durable gemstones for jewelry that can be worn everyday. Birthstone Month: September Stone size: 6.59x4.59mm Carat Weight: 1.17ct Material: Sapphire Shape: Radiant Cut Stone Type: Natural Treatment: Unheated Origin: Australia Clarity: Eye Clean Color: Green Mohs Hardness: 9 Only 1 Available