Do you legally have to give back an engagement ring in Australia?

Do you legally have to give back an engagement ring in Australia, generally no, you do not have to give it back after breakup, as engagement ring is considered unconditional gift under Australian law, unlike some countries where it is conditional on marriage. In Australia, Family Law Act and common law treat engagement ring as gift that does not need to be returned if engagement ends, unless there is agreement that it is conditional or it is heirloom. If ring is family heirloom given on condition of marriage, court may order return. If engagement ends due to fault, ring stays with recipient. For example, if man gives $10K ring and woman breaks engagement, she can keep ring legally, as gift complete. However, if ring worth $20K+ and given with expectation of marriage and not married, some courts may consider it conditional gift and order return if unjust enrichment, but rare. For wedding ring, same, gift not returnable after divorce, but property settlement may include ring value in asset pool $5K to $50K. So legally in Australia, you do not have to give back engagement ring after breakup, as it is unconditional gift, recipient keeps it, unless heirloom or agreement that it is conditional, then may need return. For expensive heirloom, get written agreement.