Quarter Round/Half Bullnose Edge or Quarter Round on Half Round Edge and is a common option offered by stone fabricators for materials like granite, marble, or quartz.

Pros

Increased Visual Thickness: Creates a very substantial, custom, and luxurious appearance without the cost of a full, extra-thick stone slab.

Unique Aesthetic: The double curve is a highly decorative and custom look that serves as a focal point.

Enhanced Durability: The doubled material and curved shape provide excellent resistance to damage.

Cons

Cost and Fabrication: Layered edges are significantly more expensive than standard edges due to the extra material and labor required for cutting and laminating.

Cleaning Complexity: The intricate profile means more curves and surfaces where dust, crumbs, or water can settle, requiring more effort to clean thoroughly than a simple eased edge.

Style Match: This edge is generally less suited for ultra-modern or minimalist designs, which typically favor the clean, sleek lines of an Eased, Straight, or Mitered edge. It shines in spaces with traditional or transitional decor.