A modern and elegant two-tone engagement ring design. The band features a unique split style: one half showcases a beautifully polished ribbed (fluted) texture, while the other half is accented with a classic half-eternity diamond pavé. The central four-prong setting is designed for a 3.5mm round cut stone.

This model is logically structured for two-tone metal casting (e.g., a yellow gold ribbed band with a white gold pavé and setting). The 3D model is professionally crafted for jewelry production and is ready for 3D printing and casting.

Technical Specifications:

• Ring Size: ~US 5.5 (16.0 mm inner diameter)
• Band Width: 4.0 mm top width
• Center Stone: 1 piece x 3.5mm (Round Cut)
• Accent Stones: 16 pieces x 1.3mm (Round Cut)
• Setting Type: Four-Prong (Center) & Pavé (Side stones)

Approximate Metal Weight: (Calculated from a total volume of 319.25 mm³)

• Gold 14k: ~4.17 g
• Gold 18k: ~4.97 g
• Silver 925: ~3.31 g
• Platinum 950: ~6.59 g

(Note: Weights are estimates and may vary slightly depending on the specific alloy, shrinkage, and casting process).

File Formats Included:

• .3dm (Rhinoceros): Native, editable NURBS file.
• .stl: Watertight mesh, ready for 3D printing.
• .obj: For rendering and use in other 3D software.

Model Information:

• All geometry is clean, checked, and free of naked edges.
• Stone settings are calculated with proper tolerances for shrinkage and metal flow.
• Ready for prototyping, 3D printing, and jewelry manufacturing.