25+ World's Sharpest Knife. The worlds sharpest knives are without a doubt obsidian surgical scalpels. We don't know when or if this item will be back in stock.
Make light work with the world's smartest scissors!
They often have a higher rockwell rating or (hrc) which means the blade will stay sharper longer. An icon of the world globe, indicating different international options. Diamond of course but you'd need to need to we have had the sharpest knives on earth since before we could write. But it cuts tomatoes real good.