The forecasted trend for natural diamond secondary production in the US from 2024 to 2028 demonstrates a consistent decline in volume from 12.53 million carats to 10.72 million carats. This represents year-on-year decreases of approximately 3.67% in 2025, 3.81% in 2026, 3.88% in 2027, and 3.94% in 2028. With respect to CAGR over the next five years, the production is expected to decrease annually by about 4.02% from its actual value in 2023.

Future trends to watch for include:

The potential impact of increased popularity of lab-grown diamonds and their influence on natural diamond demand.
Environmental and ethical considerations gaining prominence, potentially affecting consumer preferences towards sustainably sourced diamonds.
Technological advancements in diamond mining and sorting processes that could impact production efficiency and costs.