She made her senior international debut in 2012. She received her debut Women's Hockey World Cup call during the 2014 Women's Hockey World Cup, where South Africa finished at ninth position. She was also part of the national team which emerged as runners-up to England 2–1 in the final of the 2014 Women's Hockey Investec Cup. Celia also featured in the 2015 Women's Indoor Hockey World Cup where South Africa finished at ninth position.