This is a premium, high-quality 3D CAD model of an elegant Marquise Cut Engagement Ring with accent stones. The model is fully prepared and optimized for 3D printing and seamless jewelry manufacturing.Technical Specifications: Ring Size: EU 53.5 (Inner circumference) Shank Dimensions: Width at base 2.00 mm | Thickness 1.50 mm Gemstones: 13 Stones in total (Estimated Total Weight: ~3.11ct) Center Stone: 1 x Marquise Cut (15.32 x 7.42 mm | ~3.01ct) Accent Stones: 12 x Round Cut (1.30 x 1.30 mm | ~0.10ct total) Estimated Metal Weights: 14K Yellow Gold: ~3.55 grams 18K Yellow Gold: ~4.25 grams 14K White Gold: ~3.48 grams File Formats Included: 3DM / STL (Ready for 3D printing)Support & Customization:If you have any questions, need technical assistance, or require custom modifications to this design (like different ring sizes or center stone adjustments), please feel free to send me a message. I am always happy to help!Like this design?If you are satisfied with the model, I would highly appreciate it if you could leave a positive review and follow my store for more high-end jewelry designs and upcoming 3D models. Thank you!