Recreating a logo (text around a circle)

Question

My objective is to figure out how to put text around the circumference of a circle as shown below.

I have read Calligraphic logo in tikz which answer part of my question but not completely as shown in the bottom text. I have the following:

\documentclass[letterpaper]{article}
\usepackage[dvipsnames]{xcolor}
\usepackage{tikz,amsmath,amssymb}
\usetikzlibrary{decorations.text}
\begin{document}
\begin{tikzpicture}
\begin{scope}
\draw[color=gray,fill=MidnightBlue] (0,0) circle (3.5cm);
\draw[color=gray,fill=white] (0,0) circle (2.6cm);
\end{scope}
\draw[color=gray] (0,0) circle (2.5cm) node {\Huge\bf MTG};
\draw[color=gray] (0,0) circle (3.6cm);
\path [postaction={decorate,decoration={raise=-2pt,text along path, 
text=St. John's College}}] (0,0) circle (3.05cm);
\end{tikzpicture}
\end{document}

This yields:

which of course is not what I want.

Answer 1

I used libertineotf and XeLaTeX, but you can use, of course, any font.

Just to get you started:

MWE

\PassOptionsToPackage{dvipsnames}{xcolor}
\documentclass[tikz,border=5pt]{standalone}
\usetikzlibrary{decorations.text}
\usepackage{libertineotf}
\begin{document}
\begin{tikzpicture}
\begin{scope}
\draw[color=gray,fill=MidnightBlue] (0,0) circle (3.5cm);
\draw[color=gray,fill=white] (0,0) circle (2.6cm);
\end{scope}
\draw[color=gray] (0,0) circle (2.5cm) node {\Huge\bfseries MTG};
\node at (0,1.2) {\large\bfseries\color{gray} founded};
\node at (0,-1.2) {\large\bfseries\color{gray}\Lonum{2012}};
\draw[color=gray] (0,0) circle (3.6cm);

\path
    [
        postaction={
            decorate,
            decoration={
                raise=-7pt,
                text along path,
                text align/fit to path stretching spaces=true,
                reverse path=true,
                text align/align=center,
                text align/left indent={9.5818575934488693773110623190025cm}, % \pi * radius
                text align/right indent={0.0cm},
                text={| \biolinum\scshape\Large\bfseries |MXII|\biolinum\huge\scshape| – St. John's College – |\biolinum\scshape\bfseries\Large|MXII}
            }
        }
    ]
    [
        postaction={
            decorate,
            decoration={
                raise=-5.5pt,
                text along path,
%               text align/fit to path stretching spaces=true,
%               reverse path=true,
                text align/align=center,
                text align/left indent={9.7818575934488693773110623190025cm}, % \pi * radius + .2cm
                text align/right indent={.2cm},
                text={|\biolinum \bfseries\huge | • made by Qrrbrbirlbel • }
            }
        }
    ]
(0,0) circle (3.05cm);
\end{tikzpicture}
\end{document}

Output

Answer 2

Similar but slower.

\documentclass[tikz]{standalone}
\usetikzlibrary{decorations.text}
\usepackage{fontspec,amssymb}
\setmainfont{OptimusPrinceps}
\definecolor{byublue}{RGB}{0 34 85}
\newfontfamily\bolderfont{OptimusPrincepsSemiBold}


\begin{document}

\begin{tikzpicture}
\begin{scope}
\draw[color=gray,fill=byublue] (0,0) circle (3.5cm);
\draw[color=gray,fill=white] (0,0) circle (2.6cm);
\end{scope}
\draw[color=gray] (0,0) circle (2.5cm) node[scale=1.5] (m) {\Huge\bolderfont MTG};
\draw[color=gray] (0,0) circle (3.6cm);
\path [postaction={decorate,decoration={raise=-1ex,text along path, 
reverse path,text align=center,
text={|\huge\color{white}|Quick Latin Motto Erratum Et Al.}}}] (-30:3.05cm) arc (-30:210:3.05cm);
\node[white,rotate=-60] at (210:3.05cm) {$\blacklozenge$};
\node[white,rotate=60] at (330:3.05cm) {$\blacklozenge$};
\path [postaction={decorate,decoration={raise=-1ex,text along path, text align=center,
text={|\huge\color{white}|St. John's College }}}] (210:3.05cm) arc (210:330:3.05cm);
\end{tikzpicture}

\end{document}