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1. Hallmarking |
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NCH is BIS approved Assaying and Hallmarking Centre.
This facility is available at Surat, Valsad and Navsari Centre. |
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2. Fire Assay |
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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 |
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3. Laser Marking |
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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. |
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4. XRF Testing |
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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. |
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5. Photo Certificate |
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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. |
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6. Laser Soldering |
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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 |
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