This graphic illustrates the different cuts a gemstone can have, using a sapphire as an example. The way a gemstone is cut significantly affects its brilliance and fire, which is the play of light that bounces back from the stone’s facets. The text on the left indicates how deep the cut is, while the right side shows how well-proportioned the facets are.

• Shallow Cut: A shallow cut gemstone will have a larger surface area, but it will also have less brilliance and fire.
• Ideal Cut: This is considered the best cut for a gemstone, as it will maximize both brilliance and fire.
• Deep Cut: A deep cut gemstone will have a smaller surface area, but it will also have more brilliance and fire.

This is just a basic guide, and the ideal cut for a gemstone will vary depending on the stone's specific properties. A gemcutter will take into account the stone's color, clarity, and cut to create a gemstone that is both beautiful and sparkly.