Conducted under the Ameligen scientific program with Criobe, private stakeholders, and local authorities, these DRM-funded studies provide crucial insights into improving pearl quality while reducing production volumes.

The Genetics of Color: Yellow, Green & Red

The March 15th study decoded the genetic basis of pearl coloration by analyzing pigments in donor oyster shells. Key findings:

7 genes linked to yellow shells

19 genes for green shells

24 genes for red shells

These base colors—when combined with black or albino nacre—directly determine a pearl's final shade. This breakthrough could enable more consistent color production, enhancing market value.

Depth as a Color Amplifier

The March 19th study revealed how environmental factors, particularly farming depth, intensify hues. Researchers observed:

Epigenetic modifications in deep-water oysters

Darker pearls with richer luster (highly prized by buyers)

Industry Implications

These discoveries allow:
✔️ Precision control of cultivation conditions
✔️ Strategic repositioning in global markets
✔️ Reduced production waste


For a sector still recovering from pandemic-related export declines, this research lights the way toward sustainable revitalization of Polynesia's pearl industry.