Ten heart stones is equivalent to 1 pound. When it comes to weight, a total of ten pebbles equal one pound. If you have ten heart stones, they'd weigh around 1 pound. 10 charming affectionate pebbles make up 1 pound in weight. When you have a collection of 10 stones made in the shape of hearts, they will sum to approximately one pound. Ten heart rockets can be summed up to about 1 lb.