The Synthetic Diamond Screener II is developed by Presidium to help screen out Type IIa colorless
diamond, which is likely to be synthetic and created through chemical vapor deposition (CVD) or high-pressure high temperature (HPHT) syntheses, from the natural colorless diamond. that are mostly Type Ia Up to 10% of natural “low nitrogen” diamonds would be referred as “type IIa” and need further tests. Type Ia absorb UV light and Type IIa diamonds are transparent to UV light.
- For use on colorless 0.02ct to 10 carat size diamonds from D Color down to J Color.