Trilogy Beaded 1.05 Carat Round Cut Lab Created Alexandrite And Diamond Three Stone Engagement Ring In White Gold. Make an impact with this glorious lab created alexandrite and diamond trilogy engagement ring. Two dainty round cut diamonds flank a lab-created alexandrite for a dazzling effect. The 1 carat alexandrite at the center looks even more unique in a beaded halo which gives a vintage touch to this engagement ring. This three stone engagement ring is finished off with a white gold band filled with 0.05 carat diamonds and marquise shaped bead decor at the edges of the white gold band. The three stones are meant to represent lifes past, present, and future, and the arrangement gives an antique feel to it. This trilogy beaded 1.05 carat round cut lab created alexandrite and diamond three stone engagement ring in white gold can also be customized to 18k Gold plating over silver, 10k Gold or 14k Gold depending upon your choice.