You can tell when a diamond is included if you notice it appears white as opposed to
transparent. This tells you there are a lot of white inclusions blending together not allowing the light to
reflect out of the stone. You can also tell if it appears to have black spots sprinkled throughout the stone.
These are usually black crystals that make it look as if the diamond was sprinkled with pepper. This is how
lower clarity diamonds appear. Higher clarity stones are more difficult to see the individual inclusions. I
recommend staying within the range of flawless to SI1/SI2 for diamonds that do not appear this way.