Why do some stones cost more than others?

Some stones are more expensive than others due to several factors:

1. Rarity: Stones that are rare or hard to find generally command higher prices because of their limited availability.
2. Quality: Higher quality stones, which are free from flaws, inclusions, or imperfections, are valued more highly and are therefore more expensive.
3. Size: Larger stones are often more valuable because they are harder to find and can be used in a variety of applications.
4. Origin: Stones sourced from specific, prestigious locations can be more expensive due to the reputation and historical significance of those regions.
5. Labor and Processing: The amount of labor and expertise required to extract, cut, polish, and finish the stone also affects its cost. More intricate or labor-intensive processes increase the price.
6. Market Demand: High demand for certain types of stones can drive up prices, especially if supply is limited.

These factors collectively influence the market value and pricing of different stones.