OK the first thing is that Bradgate Stone & Ring is actually called Hunts Hill Standing Stone. I have no historic proof of the stones age, but if you take the trouble to actually visit the stone and dowse it, you will find 2 lines at right angles running through it. Now again if you actually bother to visit the stone, you will find that the ring is just rocky outcrops that looks like a ring in photographs. These rocky outcrops are all around the surrounding area, and you have to be careful not to trip over them when walking through the woods to the stone. To sum up, going by my own examination of the site I am inclined to think that Hunts Hill Stone is a genuine ancient monument, but the ring is just rocky outcrops.