Natural diamond prices have moved in cycles, rising with demand and tightening supply, then softening as markets or new options like lab grown diamonds expanded. Today, natural stones still lead in rarity and emotional value, especially in higher qualities and larger sizes.

Lab grown diamond prices have dropped sharply over the last few years, creating a big price gap between lab grown and natural diamonds. Wholesale diamond suppliers use price sheets and online indices to track these shifts and adjust their buying and selling strategies to protect profit in a changing market.