<DOCUMENT>
<TYPE>EX-16
<SEQUENCE>2
<FILENAME>ex161-1029.txt
<DESCRIPTION>LETTER OF PLANTE & MORAN PLLC DATED OCTOBER 29, 2012
<TEXT>

October 29, 2012

Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549

RE: Diamond Hill Investment Group, Inc.

We have read Item 4.01 to be included in the Form 8-K of Diamond Hill Investment
Group, Inc. to be filed with the Securities and Exchange Commission regarding
its change in auditors. We are in agreement with the Registrant's statements
made regarding our firm. We have no basis to agree or disagree with other
statements made under Item 4.01.

Very truly yours,

/s/ Plante & Moran, PLLC
Plante & Moran, PLLC

copy to:
Mr. James F. Laird
Chief Financial Officer and Secretary
Diamond Hill Investment Group, Inc.
325 John H. McConnell Blvd, Suite 200
Columbus, Ohio 43215
</TEXT>
</DOCUMENT>
