Thanks, I was going for a realistic look. The vase on the far left has this material noodle:
It is a slightly superficially modified version of a noodle I first encountered from Gottfried Hofmann.
The upper colour in the mix node is the glass base colour, the lower colour is the absorption colour. The first multiplication is simply to inverse the sign (and can be deleted if you also reverse the following value), the fourth noodle is the absorption coefficient. The third multiply value is the one to tweak (set at 50 in my image). This number can be thought of a the depth of the glass. A setting of zero will colour the glass the base colour only, and increasing this value will colour the glass past a minimum ray depth. Increase this a lot and you will only use the second colour. The trick is to adjust it to the thickness of your model and the effect you are going for.
This noodle is a very basic one, as it can also be used on the ior or roughness values as well, there are many translucent/transparent etc. materials you can create by variety. The great thing about it is that you can colour the glass entirely and still have uncoloured reflections, as real glass, which is not how the glass bsdf works.
Check out this link for a full explanation from the original composer of this noodle, I presume. http://www.blenderdiplom.com/en/tutorials/all-tutorials/419-tutorial-absorption-in-cycles.html
Its a very informative video, thanks to Gottfried Hofmann.