Our Services

1. Hallmarking
NCH is BIS approved Assaying and Hallmarking Centre.

This facility is available at Surat, Valsad and Navsari Centre.



2. Fire Assay
Fire Assay is most accurate method to determine gold content in gold alloy.

Our fire assay facility is as per IS 1418:2009

This facility is available at Surat, Valsad and Navsari centre



3. Laser Marking
Laser marking on jewellery can be done of logo, diamond weight etc. It helps in value addition of ornaments.

This facility is available at Surat, Valsad and Navsari centre.



4. XRF Testing
XRF is non-destructive and fast analysis of metal alloy. It is useful in testing finished ornaments. It is also useful in checking presence of Iridium and Cadmium. However this is not accurate method of testing gold component in alloy compare to fire assay.

This facility is available at Surat, Valsad and Navsari centre.



5. Photo Certificate
Colorful smart card certificate along with ornament photo is issued of XRF testing. It is useful for jewellers in issuing to end user along with ornaments.

This facility is available at Surat,Valsad and Navsari centre.



6. Laser Soldering
It is useful in repairing of finished jewellery. It solders just beside stone and meena without any damage. No need to polish jewellery again.

This facility is available at Surat centre







News update

Welcome :
Welcome to National Centre for Hallmarking


NCH now at Valsad :
National Centre for Hallmarking is now at Valsad also. For contact details please see Contact Us


RPT / CAM service now availabe at Surat centre :
Good News for Casting Jewellery Manufacturer,

Now we have introduced RPT / CAM services with latest technology, which delivers high quality RPT. We assures fast delivery. For more details contact us.



NCH now at Navsari :
National Centre for Hallmarking is now at Navsari also. For contact details please see Contact Us