New York: Gemological Institute of America (GIA) has dropped fees on its screening services for smaller diamonds to check if they are treated or synthetic.

The service screens parcels of D-to-Z diamonds and colored diamonds up to 0.2 ct. The new fee structure reduces the existing per-stone fee from $12 to $10 for diamonds between 0.06 and 0.2 ct. and to $5 for diamonds 0.05 ct. and smaller.