I finally got my butt in gear and got one of my loose stones set. The setting was done by a local jeweler (TC Jewelers in Arlington, MA) and is one of their stock settings in 14k white gold. It looks pretty delicate but actually it's a fairly hefty piece... they didn't skimp on the gold at all.
No flash on this picture and my kitchen lighting does the stone no favors whatsoever. It does appear somewhat olive in some lights but never that much. It does show the ring detail a bit better though.