Engagement rings could appear as old as the establishment of marriage itself but, not too long ago, other tokens of affection served to represent the promise to wed. And engagement rings are rare enough on males already that there isn't a set tradition. And, based on Blue Nile's Amanda Winters, this ring likely retailed for someplace around $300,000-$350,000, noting that the identical fashion could possibly be achieved for beneath $50,000 with lesser high quality stones.