I did a quick search of this tea on a Japanese website, and this matcha does exist, but they are selling it for 3675 YEN (about USD45) per 30grams. (the link can be found below)
Having said that, the name of the matcha comes from the Hekisui-en tea plantation in Uji; it is not necessarily the poetic name ("mei") of the matcha itself.
Here is the link of the matcha with the prices:http://www.ujicha.co.jp/ocyakikou.html#2
If you go down to the "抹茶" section, look for "碧翠", and you will see the price in YEN.
Personally, I wouldn't be buying it for USD59 dollars for 20grams. I'd try to get it through the above website, or I'd go and buy an Uji matcha from elsewhere, as others have suggested. Furthermore, unless you are a tea ceremony instructor or practitioner with deep pockets, I wouldn't go for this one.