<svg viewBox="0 0 100 100">
    <path d="M86.77 69.799 L69.799 86.77 50 66.971 30.201 86.77 13.23 69.799 33.029 50 13.23 30.201 30.201 13.23 50 33.029 69.799 13.23 86.77 30.201 66.971 50Z" />
</svg>