In 2023, synthetic diamond secondary production in the US was estimated at approximately 13.10 million carats. Forecasted data from 2024 to 2028 shows a consistent decline in production, beginning at 12.67 million carats in 2024 and decreasing annually to 10.8 million carats by 2028. The average annual decrease over the five-year forecast period, or CAGR, is projected at -3.8%. Year-on-year variations indicate a consistent decline in production volume.

Future trends to watch for include:

Potential technological advancements in production that could reverse the decline.
Market shifts towards sustainability and ethical sourcing, impacting synthetic diamond demand.
Potential increased competition from alternative materials or emerging markets.