De Roey went into the final round with a three-stroke lead and built on this as she eventually signed for a closing 72 to win on 14 under par overall.
England's Gabriella Cowley, who shared second place on 10 under par alongside New Zealand's Momoka Kobori, was crowned as the Sunshine Ladies Tour's overall Investec Order of Merit champion and received R200 000 ($10 600) courtesy of Investec.
Nicole Garcia finished as the leading South African in fourth place on eight under par. This also secured her second place on the Investec Order of Merit and, as the leading South African at the event, she won herself a Renault for the year.
SA's Garcia was equally delighted with her finish after putting in a strong performance on the weekend which included her third round of 64 and then Sunday's 71 to secure her a top-five finish in this event as well as the title of leading South African on the Investec Order of Merit.
--ChannelAfrica--