This 3D heart key diamond pendant jewelry design combines a romantic heart-shaped top with a classic key silhouette, symbolizing love, trust, and emotional connection. The pavé-set gemstones enhance brilliance while maintaining a clean and elegant outline.

The model is precisely engineered with secure stone settings, smooth metal surfaces, and balanced thickness to support reliable casting and high-quality finishing. The compact structure ensures durability while preserving fine decorative details.

This pendant design is suitable for casting in gold, silver, platinum, or other precious metals. It is ideal for women’s jewelry collections, romantic gift jewelry, charm necklaces, and symbolic designs inspired by love and affection.

All dimensions, weight, and gemstone details are clearly displayed in the preview images for accurate evaluation before production. This is a high-quality 3D jewelry model intended for professional designers, jewelers, and jewelry manufacturers.