Which recent source is identified as the leading producer of small, commercial-quality aquamarine?

The identification of China as the leading producer of small, commercial-quality aquamarine is based on recent developments in the gemstone market. China has increasingly become a significant source for aquamarine, particularly in the context of mining operations that focus on producing stones that are not only abundant but also accessible to a wider market for jewelry and decorative uses.

The country's mining activities have yielded substantial quantities of aquamarine that meet commercial standards, characterized by their attractive colors and affordability. This places China at the forefront in terms of volume and availability, thereby positioning it as a primary supplier in global markets.

While Brazil is historically known for producing high-quality aquamarine, its focus has been more on larger, high-quality pieces rather than the smaller, commercial-grade stones. Afghanistan and Mongolia, while they may have aquamarine resources, do not currently match China's production scale in the commercial-quality segment.