Career
He is a right-handed 7 foot 0¾ in. (215 m) tall center. Diamantakos began his pro career in 2012, when he played in the Greek League with Panathinaikos, in a game against Peristeri.
In July 2015, he signed with Darüşşafaka of the Turkish Basketball League, and was subsequently loaned to Nea Kifissia of the Greek League.
With Greece"s junior national teams, he played at the 2011 International Basketball Federation Europe Under-16 Championship, the 2013 International Basketball Federation Europe Under-18 Championship, and the 2014 International Basketball Federation Europe Under-20 Championship. Club career.
