Board Thread:Questions and Answers/@comment-24.130.238.209-20141125193346

The Tesseract represents the space gem, color is blue (Thor, Captain America, Avengers)

Loki's Sphere represents the mind gem, color is most likely green but shown blue (Avengers, Captain America 2)

The Aether represents the soul gem, color is red (Thor 2)

The Orb represents the power gem, color is purple (Guardians of the Galaxy)

There are two Infinty stones left that are Orange(Time) and Yellow(Reality),They will most likely be shown in Guardians of the Galaxy 2 and Avengers 2 or any other future installment of the Marvel Cinematic Universe.  