Possible Garnets

Ruby and Red (Cherry) Sapphire: Pyrope

Ruby and Padparadscha (Orange) Sapphire: Hessonite

Ruby and Yellow Sapphire: Spessartite

Ruby and Green Sapphire: Hessonite (Brown)

Ruby and Blue Sapphire: Garnet

Ruby and Purple Sapphire: Purple Garnet

Ruby and Pink Sapphire: Rhodolite