Capizzio estimates that the ring has an intrinsic monetary value of 300 gp, from the gold itself and the design carved into it. A Dweomer of magic is definitely detected upon the ring, but specifics of the aura elude Capizzio, other than that the magic of the ring is very, very powerful. He also notes that there is a sort of 'shadow' lingering about the edges of the dweomer, possibly indicating some darker nature to the magic of the ring, but any more specifics elude him just now.
OOC: Post below (#92) edited to relect the success of Kerlan's previous magic detection. Sorry, I missed that the first time through.