Why is there a difference between the physical object I received and the main picture?

Due to environmental problems such as light and artificial measurement, there will be small errors in product size and color. Crystal is a natural mineral material. Pits, cracks, white lines, cotton wool, etc. This is normal

Is the sale of real crystal?

Yes, Because temperature and climate changes all the time. Because crystal stone is a product of nature, Also impurity always come along during the growth.Each one is unique.