Miss Earth Nigeria 2018 Okpala Maristella Chidiogo is representing Nigeria in Miss Earth 2018. She is a model, dental technologist and a licensed cabin crew by profession and maintains a very healthy lifestyle.
Maristella is 25 years of age and stands tall with a spectacular height of 176 cm. She is the ambassador of Rikaoto. Maristella succeeds Miss Earth Nigeria 2017 Eucharia Akani who was unable to make a mark in the finale, but she did win the bronze medal in the Long Gown Competition in Group 2.