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Understanding Indian Hallmarks

Posted: Fri Oct 19, 2012 6:23 am
by dognose
Understanding Indian Hallmarks

The hallmarking of gold jewellery in India has been applied on a voluntary basis since April 2000, and on silver jewellery since December 2005. The hallmarking of gold jewellery sold in India is now in the process of becoming mandatory.

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Logo of the Bureau of Indian Standards (BIS)

Hallmarking in India comes under the control of the Bureau of Indian Standards (BIS), but the assaying is conducted by private, but official, assayers who are monitored by the BIS. To date around 200 of these assayers have been appointed by the BIS to deal with the massive gold jewellery producton that occurs in India. Hallmarking has not only been introduced in India as part of their consumer protection programme, but also because the the Indian Government believe that official hallmarking will boost exports of Indian jewellery. Doubtlessly, over the coming years, we will soon see a lot of Indian jewellery for sale around the world, and with this in mind, I thought it a good idea to familiarize ourselves with the Indian gold standards and hallmarks.

It is a common misconception that all Indian gold jewellery is of a high carat value, whilst that is true with much of the gold jewellery sold in that country, with 916 (22ct) being the most popular, there are in fact six official standards for gold:

958 (23ct), 916 (22ct), 875 (21ct), 750 (18ct), 585 (14ct), 375 (9ct)

The Indian gold hallmark is made up of five components:

1: The BIS logo
2: A three digit number indicating the purity of the gold in part-per-thousand-format
3: The mark of the assaying centre
4: A letter denoting the date of hallmarking.
5: The maker/sponsor mark

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Above is my rather poor attempt of what the Indian gold hallmark looks like, hopefully we will find an image of the real thing soon.

1: The BIS hallmark
2: The purity mark, in this case 916/1000 (22ct)
3: The mark of the assayer, in this case Sree Vishnu Assayers, Durga Nagar Colony, Ameerpet, Hyderabad
4: The date letter, in this case 2008
5: The maker's/sponsor's mark

The Date Letter System

The date letter system starts with 'A' for 2000. The letter 'I' is omitted from the sequence.

A - 2000
B — 2001
C — 2002
D — 2003
E — 2004
F — 2005
G — 2006
H — 2007
J — 2008
K — 2009
L — 2010
M — 2011
N - 2012

Further information will be added to this post as it comes to hand.

If you have any further information or additions/corrections on the subject or examples of the marks, please post them here.

Trev.

Re: Understanding Indian Hallmarks

Posted: Tue Oct 23, 2012 5:31 pm
by dognose
Some more marks that identify officially appointed assay offices in India:

MMTC Ltd - New Delhi:

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Cochin Assay Co. Pvt. Ltd - Cochin:

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Gujarat Gold Centre - Ahmedabad:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Thu Oct 25, 2012 6:34 pm
by dognose
Leo Analytics Lab - Mumbai:

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Emerald Testings (India) Pvt Ltd - Coimbatore:

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Jalan Hallmarking Centre - New Delhi:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Tue Oct 30, 2012 4:17 pm
by dognose
Calicut Assay and Hallmarking Centre Pvt. Ltd. - Calicut:

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Bharat Assayers - Chennai:

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J.J. Hallmarking Centre - Kolkata:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Sun Nov 04, 2012 6:59 am
by dognose
Trichur Assay and Hallmarking Centre Pvt. Ltd. - Trichur:

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Mahavir Hallmarking Centre Pvt Ltd. - Mumbai:

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Ace Hallmarking Services Pvt. Ltd. - Kolkata:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Fri Nov 30, 2012 11:46 am
by dognose
Kesar Assaying & Hallmarking Centre - Chennai:

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Varsha Bullion Hallmarking Centre - Mumbai:

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Cochin Assay Centre - Trichur:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Sat Dec 22, 2012 4:02 am
by dognose
V.G. Gold Assaying and Hallmarking Centre - Rajkot:

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Mahalaxmi Hallmarking Centre - Mumbai:

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G.N. Hallmarking (P) Ltd. - Kolkata:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Wed Jan 15, 2014 5:48 am
by dognose
Quality Hallmarking Centre (P) Ltd. - Calicut:

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Stuti Hallmarking Centre - New Delhi:

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Travancore Hallmarks Co.(Formerly Cochin Hallmark Co. (P) Ltd.) - Trivandrum:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Thu Jan 16, 2014 10:36 am
by dognose
Sukraa Hallmarking Centre - Coimbatore:

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Excell Assay and Hallmarking Centre - Trichur:

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Shantivijay Testing - Chennai:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Sat Jan 18, 2014 8:17 am
by dognose
PGD Goldcheck Pvt. Ltd. - Mumbai:

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Century Hallmarkings - Secunderabad:

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Krishna Hallmarking Centre Pvt. Ltd. - Coimbatore:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Tue Jan 21, 2014 5:36 am
by dognose
Mahavir Hallmarking Centre - Pune:

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Gujarat Gold Centre - Vadodara:

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M/s Sampath Assaying and Hallmarking Pvt. Ltd. - Visakhapatnam:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Thu Jan 23, 2014 5:59 am
by dognose
Sree Vishnu Assayers - Hyderabad:

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M/S Variety Hallmark - Mumbai:

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M/S Shri Salasar Balaji Hallmarking Centre - Jaipur:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Tue Jan 28, 2014 1:46 pm
by dognose
M/S.G.S.Hallmarking & Refinary Pvt. Ltd. - Mumbai:

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M/S Swastik Hallmarking Center - New Delhi:

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M/S A-1 Hallmarking Center - Chennai:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Thu Jan 30, 2014 7:43 am
by dognose
M/S Merlecha Assayers, Bangalore:

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M/S L.D. Gold Lab Pvt. Ltd., Ludhiana:

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M/S Kerla Assay and Hallmarking Center Pvt Ltd, Cochin:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Sun Feb 09, 2014 11:58 am
by dognose
Roopali Assayers & Hallmarkers, Jabalpur:

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Shivam Assaying & Hallmarking Center, New Delhi:

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Surya Assaying & Hallmarking Center, Mysore:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Fri Feb 14, 2014 6:23 am
by dognose
Rohit Hallmarking Center, Bangalore:

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Akshaya Hallmarking Centre, Vijayawada:

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M/s R.C. Assaying & Hallmarking Centre, New Delhi:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Tue Feb 25, 2014 8:20 am
by dognose
CGR Madurai Hallmark, Madurai:

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PVM Assay Centre, Calicut:

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Italab Salem Pvt. Ltd., Salem:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Tue Mar 11, 2014 8:40 am
by dognose
Sree Vishnu Assayers Pvt. Ltd., Chennai:

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Shree Assaying & Hallmarking Centre, Maharashtra:

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G.N.Hallmarkings, Kolkata:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Fri Jun 06, 2014 12:34 pm
by dognose
Balaji Assaying & Hallmarking Centre, Tiruchirapalli:

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Mishri Hallmarking Services India, Chennai:

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MMTC Limited, Kolkata:

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Trev.

Re: Understanding Indian Hallmarks

Posted: Sun Jun 08, 2014 11:28 am
by dognose
Midaz Testing Lab., Bangalore:

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TMP Hallmarks Pvt Ltd., Mubai:

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CGR Hallmarks, Ernakullam:

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Trev.