Ruby-Anne died of injuries she sustained when she reportedly fell out of a car on Saturday, February 11.
No one has been charged in relation to her death.
Family, friends, colleagues and the public who were touched by Ruby-Anne's life and story are expected to attend her funeral service at the Rev. Sioni Kami Memorial Church in Port Moresby on Friday.
Ruby-Anne was 24 when she died and would have celebrated her 25th birthday on February 13. She was Miss South Pacific PNG 2012-2013.
