SubD Base & Sculpting

1. Prepare the base curves and convert to SubD

Select the three profile curves and extrude them with the Gumball (Shift + click on the small blue sphere extrudes both ways); type 2 to get a 2 mm solid. Then run QuadRemesh from the SubD tab with Target Edge Length at 0.75 and symmetry enabled on X, Y and Z, convert to SubD, and confirm the result has a continuous loop of faces around the element.

2. Isolate the base and set up symmetry for editing

Move the extrusion to its own layer, then enable Symmetry from the Front view along the X-axis, flipping the arrows so they point upward. Double-click edge loops with Ctrl + Shift to select them and delete the loops you don’t need — interior and outer — to simplify the geometry and smooth the form.

3. Refine the curvature with soft transform

Scale the inner loop vertically — and switch to Soft Transform for a smoother result, using the influence sphere to define the affected area. Once the profile looks natural, rebuild the symmetry from the Top view along the X-axis (arrows pointing downward) and use Soft Transform again on the lighter side to create a soft arc.

4. Disable soft transform and split the model for stone placement

With the curvature final, turn Soft Transform off (Enable = No in the command bar) and remove the symmetry. Then run Split with the Edge Loop option, double-click the outer and inner center loops, and delete the bottom half — the gems only live on the upper section.