Cynthia Espinoza, a 2010 Plainfield North High School graduate and former Career & Technical Education student, returned to the school's third annual Career Fair on Wednesday, November 10th, 2010, as a presenter for Mark Peter's Diamond Designs in Plainfield. 

Espinoza challenged the senior students gathered at her display to place the gemstones in calendar order according to their month.  She told the students she loves her job and plans to go back to school for her business management degree to make a career in the jewelry business