I got the blue ones - the blue topaz.  Cheap price!  Are these man-made blue topaz stones, or what?  I don't know - but it looks pretty good.  They are a nice light blue color and look quite nice.  They come in a tiny felt bag in a tiny box.  Presentation gift-wise is not good, but I put them in a much nicer box I had and they look excellent.  These are a good size - definitely noticable without being too clunky or chunky.  For the price, I'd say they were a great buy!