It doesn't really represent Judaism, it's a complex mathematical equation. It has to do with the golden mean and the canon of proportion developed by the Egyptians and Greeks. The Star of David is taken from these divine mathematic rules.
But, the link that you shared belongs to a group whose motto was 'There is no religion greater than Truth', and they followed the laws of equivalent exchange and all. Unfortunately, the Theosophical Society is one of MANY Victorian era 'cults' , like the Rosecrucians and the Order of the Golden Dawn. They had nothing to do with REAL alchemy, just borrowed the symbols found within it, smoked a lot of opium, had a lot of orgies and believed the sum of all that unlocked some kind of higher spiritual power.
Here's an article and some good examples of 'transmutation circles' made with the 6 points of dimension