There are many versions of Scorpio according to Greek Mythology and History. The first creation is that in ancient times Gaia and she were angered by a hunter because hunter wanted to kill a Bull and Gaia trying to stop him from this - Birthstones for Scorpio

Gaia decided to send a Scorpion to the hunter to sting him because he wants to protect the Bull from that man. This is the formation of a new constellation as a Bright Star in the Sky and which is named is the Scorpion. It is very opposite of Taurus and Orion because of its Protective Behavior.

Gaia thought that the hunter will kill all the animals from the earth like the Bull but she tried to stop him with the help of Scorpion. The Scorpio kills him with his sting and Zeus raised them in front of the Sky in the form of stars with the constellation - Bulk Gemstones