Granite is a natural stone that is mined from quarries, then cut and polished. Each slab of granite is unique in its pattern and coloration. Quartz, on the other hand, is an engineered stone made from about 90% ground natural quartz and 10% polymer resins. Because it's engineered, quartz can be produced in a wider range of colors and patterns than natural granite.

Both granite and quartz are durable materials, but quartz is generally considered more resistant to scratches and stains because it's non-porous. Granite is porous and might require periodic sealing to prevent stains and maintain its appearance. On the other hand, quartz doesn't need sealing and is easier to maintain.

Prices for both granite and quartz can vary based on factors such as quality, color, origin, and brand. On average, quartz countertops tend to be more expensive than granite. However, the cost of granite can also reach higher price points for rare or exotic varieties. It's essential to get quotes based on specific materials and requirements to determine the exact cost difference.