Lab Diamond Trilogy Ring Collection

A trilogy ring brings three lab grown diamonds together, commonly with a larger centre and a complementary stone on each side. It is often chosen for its symbolism, but the arrangement also creates a pleasing spread across the finger and offers more scope to combine diamond shapes.

Find the right balance between the three stones

Compare how much of the finger the design covers and whether the side stones taper naturally towards the band. Pear or tapered baguette side stones draw the eye inward, while round sides can give a softer outline. The actual diamond measurements help explain why two trilogy rings with similar total carat weights may look different.

Let the individual stones tell the same story

When selecting lab diamonds for a trilogy, compare their shapes and brilliance together rather than treating the centre as the only important stone. Side diamonds should complement the main diamond in outline, colour appearance and setting height. Slightly tapered side stones can lead the eye inwards, while three rounded centres offer a softer look. Consider the total width across the finger and how the side baskets affect wedding-band fit.

Check the height of all three settings and whether a straight wedding ring will sit close to the shank. If you prefer the same centre diamond in a less detailed arrangement, browse our lab diamond solitaire engagement rings.