Frequently Asked Questions
Everything you need to know about BIS hallmarking, HUID, purity testing, and working with Varsha Bullion — answered clearly for jewellers, dealers, and consumers.
About Varsha Bullion
Varsha Bullion Hallmarking Centre is a BIS-authorized and IAGES-accredited gold and silver assaying and hallmarking laboratory in Mumbai. With over 20 years of experience and two centres, we provide precision purity testing, HUID assignment, and BIS-compliant hallmarking for jewellers and bullion dealers.
Learn more about usWe operate two centres in Mumbai: our Zaveri Bazaar centre on Mumbadevi Road (in the heart of Mumbai’s jewellery district) and our Lower Parel centre at Kamla Mills. Both are easily accessible and equipped with the same testing infrastructure.
View our locationsWe are open Monday to Saturday, 10:00 AM to 6:00 PM. We are closed on Sundays and public holidays.
Contact usGold Hallmarking
Yes. Gold hallmarking has been mandatory in India since June 2021 under the BIS (Hallmarking of Gold Jewellery) Order. All jewellers with a BIS registration are required to sell only hallmarked gold jewellery.
Learn about our hallmarking servicesBIS allows hallmarking of gold in five grades: 14 karat (585 fineness), 18 karat (750), 20 karat (833), 22 karat (916), and 24 karat (999). Each grade is identified by its fineness number stamped on the article.
Read about gold purity gradesAt Varsha Bullion, gold hallmarking is typically completed on the same day for standard lots. Turnaround depends on the volume submitted, but we prioritise efficiency without compromising testing accuracy.
Get started with hallmarkingYou will need a valid BIS registration certificate for your jewellery business, a completed job sheet listing the articles to be hallmarked, and the prescribed hallmarking fees. Our team can guide you through the submission process.
View the hallmarking processSilver Hallmarking
Silver hallmarking is currently voluntary in India. However, it is widely expected to become mandatory in the near future, following the same trajectory as gold hallmarking. Jewellers are encouraged to begin hallmarking silver articles now to stay ahead of regulatory changes.
Learn about silver hallmarkingBIS recognises two grades for silver hallmarking: sterling silver at 925 fineness and fine silver at 999 fineness. Each grade is tested and stamped with the appropriate fineness mark.
See silver purity gradesYes. Varsha Bullion hallmarks silver articles under IS 2112:2025, the Indian Standard for silver and silver alloys. We test and hallmark both sterling silver (925) and fine silver (999) articles.
Explore our servicesHUID
HUID stands for Hallmark Unique Identification Number. It is a six-character alphanumeric code assigned to every hallmarked gold and silver article in India. The HUID enables end-to-end traceability, linking each piece of jewellery back to the hallmarking centre, jeweller, and test results.
Learn more about HUIDYou can verify a HUID through three methods: the BIS Care app (available on iOS and Android), the BIS website verification portal at bis.gov.in, or via SMS to the designated BIS verification number. Verification returns the article’s purity, hallmarking centre, and jeweller details.
HUID verification detailsYes. Since July 2021, all hallmarked gold articles must carry a HUID. The HUID is laser-engraved or stamped on the article alongside the BIS logo and fineness mark. Articles without a valid HUID are not considered properly hallmarked.
Read more about HUIDPurity Testing
XRF (X-ray fluorescence) is a non-destructive testing method that uses X-rays to determine the elemental composition of gold and silver articles. It provides results within minutes and does not damage the article, making it ideal for routine hallmarking and screening.
Learn about our technologyFire assay (cupellation) is a destructive referee method that involves melting a small sample of the article to isolate and weigh the precious metal content. It is accurate to 0.01% and is the definitive method for resolving purity disputes or verifying high-value bullion.
Learn about fire assayFire assay is the definitive, most accurate method for determining precious metal purity, with accuracy to 0.01%. XRF testing is highly reliable for routine hallmarking and is sufficient for standard BIS compliance. Fire assay is used as the referee method when purity is disputed.
Compare testing methodsCharges & Process
The BIS-prescribed hallmarking charge for gold articles is Rs 45 per article plus applicable GST (rates as of March 2026, subject to revision by BIS). Additional charges may apply for silver hallmarking and specialised assay services. We maintain transparent, BIS-compliant pricing with no hidden fees.
View hallmarking chargesNo appointment is needed. Both our centres accept walk-in submissions during working hours (Monday to Saturday, 10 AM to 6 PM). For large lots, you may contact us in advance so we can ensure smooth processing.
Find our locationsIf an article does not meet the declared purity grade, it will not be hallmarked. The article is returned to the jeweller along with a detailed test report indicating the actual purity found. The jeweller can then choose to refine the article and resubmit it for testing.
Learn about the processStill have questions?
Our team is available Monday to Saturday to help with any hallmarking queries. Reach out by phone, WhatsApp, or visit either of our centres.