The Three Stone Diamond Engagement Ring. Otherwise know as the trintiy rings. A ring meant to symbolize the past, present and future of your love. The Three Stone Engagament Ring is an extremely popular trend in engagament rings. Typically the Three Stone Diamond Engagment ring is constructed with two slightly smaller diamond set to either side of a slighly larger center diamond. At Houston Jewelry we have a great selection of three stone engagament rings as well as loose G.I.A. Certified diamonds to create your own unigue design. Stop in today and let our jewelry experts create your perfect Three Stone Diamond Engagement ring.