Stretchable parentheses in text labels in Graphics

I’m trying to annotate a plot with points of the form $ \left(\frac{1}{2},\frac{1}{2}\right)$ ; my problem is that the parentheses don’t stretch to cover the fraction. I think that what I want to do is to use a StyleBox inside the Graphics primitive to allow me to format the string using SpanMaxSize, but StyleBox is not a text string. I cannot figure out how to make this work. Is there an easier way?

So for example, if I use

Graphics[Text[Style["(1/2,sqrt(3)/2)", Black, 12], {-1.1, .8}]] 

with the 1/2 and sqrt(3)/2 formatted in OutputForm, I get enter image description here