WHO OWNS THE 99-CARAT DIAMOND?

The story

World's richest Damian proposes to Aveline with a 99-carat ring; her step-family jails her. After four deaths (slashed, broken, drowned, stabbed), she loops, poses as his secret lover, and finds Damian dead—the imposter is Helena and Reed's altered son. Exposed, she inherits all, world's richest.