High-quality 3D model of a classic round diamond engagement ring with side stones, ready for 3D printing and jewelry manufacturing. The design features a prominent 4-prong center setting and a delicate pave band.Technical Details: Ring Size: EU 53 Center Stone: 1 Round Cut, 9.28 x 9.35 mm (approx. 3.02 ct) Side Stones: 14 Round Cut, 1.80 x 1.80 mm (approx. 0.31 ct) Total Gem Count: 15 (Total Gem Weight: 3.33 ct) Estimated Metal Weights: 14K Yellow Gold (~3.58g), 18K Yellow Gold (~4.29g)This model is fully optimized for casting, production, and high-resolution rendering.Tags: 3d model, jewelry, engagement ring, diamond ring, wedding ring, solitaire, cad design, 3d print ready, printable jewelry, round cut diamond, ring model, jewelry manufacturing.