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Sampling
Weighing of sample
Cupellation
Hallmarking
 

GUIDELINES FOR HALLMARKING
 
  1. Any jewellery manufactured must meet the following requirements –
       * IS 1417 – 1999
         
Gold and Gold alloys, jewellery/artifacts fineness and marking specifications
        {3rd revision}
       * IS 1418 – 1999
         
Method for assaying Gold in Gold bullion, Gold alloys and Gold jewellery/artifacts
        cupellation (fire assay) method
       * IS 2790 – 1999
          
Guidelines for manufacture of 23, 22, 21,18,14 & 9 Karat Gold alloys {1st revision}
       * IS 3095 – 1999
         
Gold solders for use in manufacture of jewellery.
      * IS 2112-2003
         Silver & silver alloys, Jewellery/Artifacts-Fineness and marking- specification.
      * IS 2113-2002
         Assaying Silver in Silver and Silver alloys-methods.


Specific Instructions for Submission of Jewellery for Hallmarking:

  1. Before tendering jewellery for hallmarking, from each lot (either manufactured by same Gold smith or of similar design/Technology) a representative sample must be fire assayed (destructive sampling) to confirm the fineness for which is to be hallmarked. A record for the same is essential to ensure that the jewellery being sent for hallmarking meets declared purity.

  2. Hollow and studded Jewellery is not normally accepted for hallmarking. Hence it is advised to send jewellery in semi finished condition (before studding) to avoid any damage.

  3. Each piece of jewellery must have an identification logo (jeweler's logo) and the year of manufacture (Code Letter as decided by Bureau of Indian Standards e.g. letter 'A' denotes Year 2000 which represents the year of hallmarking, the current code letter 'E' denoting year 2004).

  4. Ensure that there is a suitable provision on the piece of jewellery where hallmarks can be put. If this is not the case, provide with soldered strip at suitable place on the jewellery on which hallmarking can be done.

  5. When jewellery being sent for hallmarking is manufactured by different artisans, segregation of the articles is to be done in different lots for each artisan. This is to be specified in the Issue Voucher so as to make sampling easier.

  6. The jewellery being sent must be properly packed and sealed. It must also accompany with it a detailed list of items, quantity and weight.

  7. A sample format of the Packing list to be attached in duplicate with the package can be viewed by clicking on the hyperlink.
    NOTE: It is necessary for the Jewellers to cover all the details mentioned therein.

  8. The jewellery sent must be insured for the period, for which it is in transit.

  9. Hallmarking Price list can be viewed by clicking on the hyperlink.

  10. Selection of minimum 10% of total jewellery articles for scrapping from various spots on the jewellery is done. Once scrapings meet to the declared purity only then 100% of the lot to which it represents will be hallmarked.

  11. In the event the sample fails to meet the declared purity, a Lower Cartage or Reject mark on each piece is put after informing the client. However, the entire rejected lot will be charged as per the attached price list.

IMPORTANT:

According to IS 1417:1999 Clause 6.2
Gold jewellery/artifacts on which markings should not be applied are as under :

  • Any Gold jewellery/artifact which has not be assayed by a Bureau of Indian Standards certified Assaying and Hallmarking Centre.
  • Any Gold article/ornament which fails to comply with specified fineness/cartage.
  • Any Gold article/ornament which is not solid or which is made with a hollow centre and then filled with base metal, cement or any other foreign substance thereby giving the article false weight or strength, unless the weight of Gold is indicated on the article along with the jeweler's/sponsor’s logo.

  • Gold articles on which it is physically impossible to stamp the marks.
  • CADMIUM (Cd) soldered Gold jewellery.

CHECKLIST

Markings to look for while buying a Hallmarked jewellery.
 

BIS MARK
Bureau of Indian Standards Corporate Logo
FINENESS

Fineness for Gold

 

Fineness for Silver

 

   Corresponding to 23 Carat

A millesimal number fineness indicative of Gold content

 

 
Corresponding to 22 Carat
Corresponding to 21 Carat
Corresponding to 18 Carat
Corresponding to 14 Carat
Corresponding to 9 Carat

Assaying & Hallmarking Center's Mark

The Logo of BIS recognized Assaying and Hallmarking Centre where the jewellery has been assayed and hallmarked.


Year of Marking

Code Letter represents the year of hallmarking of jewellery as decided  by Bureau of Indian Standards e.g. letter 'A' denotes Year 2000, the current code letter 'E' denoting year 2004.


Jeweler's Mark
Logo of Bureau of Indian Standards Certified Jeweller / Jewellery Manufacturer
 

Last Update on 15/05/2006.

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