
Optical grade diamonds feature minimal crystal defects, low nitrogen and boron impurity content and high surface flatness.
These diamonds show excellent transmittance, about 70%, from the ultraviolet range, as low as 250 nm, to the infrared region, up to 25 µm.
Optical grade lab-grown diamonds feature a high refractive index of around 2.38 and a low optical absorption coefficient. What it does is it allows for minimal signal loss and high-resolution performance across different wavelengths.
This combination makes optical-grade diamonds a preferred choice for precision optics.


At AGA9, optical grade diamonds are carefully crafted to meet the most rigorous technical and industrial standards. Our diamonds provide excellent optical clarity and structural integrity.
Our diamond plates ensure:
Such smooth surfaces are desired for minimizing scatter and ensure consistent transmission in laser and imaging systems.
AGA9 manufactures single-crystal and polycrystalline CVD diamond plates in customizable sizes, shapes and thicknesses. We strive our best to offer tailored lab-grown diamond plates. We strongly believe in delivering high-quality diamond plates that can be seamlessly integrated into your business processes and enhance overall efficiency.
AGA9 is technology ahead and ensures commitment to precision engineering, material consistency, and technical support.
Everything you need to know about our technology, sustainability, and applications.