If you look back at Eragon and Eldest, u will see there is a bit of a saphire theme going on. There r so many things that have to do with saphires: Saphira, her name has the word saphire in it; Sphira 2, (Brom's dragon) also has the word sphire in it; Saphira is the color saphire blue; Saphira (Brom's dragon) probably was sphire colored too because of her name; the Isidar Mythrim means star saphire; Brom's old ring that Islanzadi gave to him as a symbol of their peace treaty is made of saphire. Do u see where I'm going here? Do u think it means something?

Not really. Paolini chose that name because of the stone yes. Brom's dragon had the same name but that was in order to support the plot. As for the big red saphire that is just a coincidence.

I agree with that and cp mentions a lot of other gems stones. Morzan's sword in the movie might have a saphire but in the book it is decorated with a red ruby to match it's blade. If saphire was a theme it would have a saphire too.

MAYBE it is just coincidental. . . . But really, think about it!

Saphires are blue right?
Rubies are red....i thinx

well tecnicly Rubys, Emeralds, and Saphires are the same stone but they gain their color from the chemicals they are formed with

Like I said, just another one of my crazy theories! I guess we'll just have to wait for the final book to come out before we TRUELY find all the answers we are so desperately seeking....The wait......I BURNS!!!!