I think the pink/red stones are cabachon cut rubies. It's funny, certain stones suit certain styles and cuts better. The ruby looks intriguing as a round cocktail ring, not so much as a square pendant. The blue topaz looks amazing as a medium enhancer or large square cocktail ring - but if it's the large enhancer, it's a little too 'Titanic.'
I've never bought much Yurman before - is it best to just grab what you like whilst it's still available - or search the DY holiday outlets over the next few months? I thought I read on another thread they saw the large moonstone cocktail ring at an outlet already - but I have no idea how quickly collections cycle out.