When purchasing a diamond, its price is stated in terms of price-per-carat.
The general parameters that affect the price are color, clarity, cut
quality, shape, and carat-weight. It is important, however, to remember the following:

Decide on your budget before you begin shopping for a diamond. You do not
have to choose the most expensive stone - look for a diamond that meets
your needs, at a reasonable cost.

If you want a fine stone, prefer one with fewer inclusions, while having
slight color (not colorless) To keep within your budget, if you select a
stone that is nearly colorless, then it may have some small inclusions.
You can choose a diamond that is slightly smaller and with very few
inclusions, but slightly lower in color. Your choice will be a compromise
between the basic parameters.