Katerina Argyrou (MBA, HEC Paris with Excellence Scholarship / Manager, PwC London / BA in Finance, Washington DC / HAEF)


When I started my GMAT prep a year ago, and when searching for professional support, everyone I spoke to recommended Dia Gerontoudi Prep Center.

Getting support from Mrs. Dia was a great choice and one that brought me closer to getting admitted to the MBA program I always wanted. Mrs. Dia’s preparation method is exceptional and very easy to follow. Her teaching style is extremely inspiring and effective, making this journey as enjoyable as it can be.

Mrs. Dia is an amazing person who really cares about her students. I cannot recommend Mrs. Dia enough.

Thank you for all the support you provided throughout this journey. Couldn’t be more thankful.