Wells Brothers have been selling Diamond dog biscuits by the pound since rocks were soft. Ok, maybe not that long, but it’s been a while. Last spring Diamond released a new line of all-natural biscuits. Like most updated product release it takes a while to get the old products out and supply lines up to capacity with the new stuff. Those growing pains are over. The new “Diamond Natural” dog biscuits have been a huge success. These biscuits contain no corn, no wheat, and no soy and sell for $3.25 a pound. Yes, you can mix and match the 6 flavors.