found: Work cat: Malka, L. The engagement ring, 2016:cover (how to choose the perfect engagement ring)
found: OED online, July 21, 2016(Engagement ring. The fact of being engaged to be married; betrothal. Also attrib., esp. as engagement ring.)
found: Wikipedia, July 21, 2016(An engagement ring is a ring indicating that the person wearing it is engaged to be married, especially in Western cultures. In Western countries, engagement rings are worn mostly by women, and rings can feature diamonds or other gemstones.)