This 3D model presents a classic three-stone engagement ring featuring a striking emerald cut center stone flanked by two trillion cut side stones. The elegant proportions highlight the brilliance of the main gemstone while adding balance and symmetry with the side accents. The design is ideal for diamonds, emeralds, or other precious gemstones, and can be crafted in rose gold, yellow gold, white gold, or platinum. The model includes precise measurements, gem settings, and CAD details for professional jewelers, 3D printing, and manufacturing. This timeless style is perfect as an engagement ring or anniversary gift, offering both symbolism and sophistication for women.