Thread: Coticule Advice

I need some advice concerning a coticule I recently purchased. It has a crack running down the side of the stone. I understand that a natural stone will have cosmetic flaws, but I am worried that the imperfection at this corner of the stone is a open crack and not just a cosmetic flaw. When I put water on the stone, there is movement at the line, seeming to indicate a structural problem, weakening the integrity of the stone. Is this normal with these Belgian stones and should I return it for a replacement? Will the replacement likely have the same problems? I guess with the price of these stones, I expected higher quality. Thanks for you input.