Holy Grail size

I'm looking to create my own grail and was hoping someone could help me with dimensions. Measurements such as height of bowl, width and height of stem, diameter of rim and diameter of base.

I have looked around and can't find the info I am looking for. I understand these may vary from prop to prop.

Thank you very much.

Here... Although my measurements could be wrong.

Every hear'd of Clubobiwan?

A giant help. Thank you both.