Check out Shield pin with diamond Low-poly 3D model on CGTrader for $18. High-quality mesh by squarebagel: 7668 polys, 3889 vertices. Textured, UV Mapped.
MA (Autodesk Maya, filesize: 710 KB), OBJ (OBJ, filesize: 618 KB), FBX (Autodesk FBX, filesize: 247 KB), TEXTURES (Textures, filesize: 1.63 MB)