<table cellpadding="0" cellspacing="0" border="0"> <tr> <td align="left" valign="top" style="background-color:#FF0004;"><img src="http://placehold.it/100x100" alt="" width="100" height="100" border="0" style="display:block; border-radius:50%;" /></td> </tr> </table>
For a Border Radius with a Border
<table cellpadding="0" cellspacing="0" border="0" style="border-collapse: separate !important;"> <tr> <td width="100" height="100" align="center" valign="middle" style="font-family:Helvetica, Arial, sans-serif; font-size:10px; mso-line-height-rule:exactly; line-height:12px; color:#8b6d49; padding:0 0 0 0; border:1px solid #8b2331; border-radius:50%;"> EXAMPLE </td> </tr> </table>