A trilogy ring represents the arrangement of three (3) stones set along with the band and sitting right next to each other.There are two distinct variations of the Trilogy ring:Center stone is the biggest. This design is where the stone at the center is larger than the two adjacent stones on the shank. This is the most popular variation of Trilogy diamond rings. The theme of this usually follows the meaning of past, present, and future. The largest stone placed in the center depicts the present and the fact that it’s bigger than the other stones means the present is the most important time.Equal sized stones. There are also designs where the 3 stones on the ring are all the same size. The three (3) stones may symbolize different things, for instance; your adoration of your spouse or/and children, a strong bond of family, love, or something else.