Micro II Single Solitaire with .5 Carat Diamond The Micro II Single Solitaire with .5 Carat Diamond is constructed from solid 18K gold and defined by HOORSENBUHS®’ micro-scale tri-link architecture. A single hand-set natural diamond anchors the form, introducing a focused point of clarity while preserving balance and proportion. Each ring is crafted by hand and finished to HOORSENBUHS®’ exacting standards. The diamond is set with precision to maintain clean geometry and structural integrity, allowing light movement without softening the architecture.