Gold is a precious that holds cultural and economic value among the buyers in India. Gold is available in various forms based on its purity and composition, with 916 and KDM being the most commonly known types. Hallmark, on the other hand, is a certification that verifies the purity of gold.
Hallmarking involves accurately determining and officially recording the precious metal content in jewelry or bullion. The Government of India made gold hallmarking mandatory on 23 June 2021 in 256 districts with at least one Assaying and Hallmarking (A&H) centre, covering 14, 18, and 22-carat gold. Jewelers must register with BIS online for free, and the registration is valid for life. Gold is alloyed to increase durability, but this makes it prone to adulteration. To protect consumers from fraud, the RBI Standing Committee on Gold tasked BIS (Bureau of Indian Standards) with introducing gold hallmarking in 2000 and the silver hallmarking began in 2005.
KDM gold refers to gold jewelry made using cadmium as a solder, enabling intricate designs. It is commonly available in 22K, which means 91.67% pure gold mixed with other metals. The process involves dividing the gold alloy into required proportions, adding cadmium for soldering, and thoroughly mixing it to create a uniform mixture. This makes the alloy suitable for crafting detailed jewelry patterns.
916 gold, or 22-karat gold, contains 91.6% pure gold, with the remaining 8.40% made up of metals like copper and silver to improve strength and durability. Jewellery made from 916 gold is often hallmarked with "916" or "22K" to confirm its purity. It is widely used for jewelry making, offering a balance between purity and strength, making it suitable for intricate designs and everyday wear.
The difference between hallmark gold, KDM and 916 gold are mentioned in the table below:
Hallmark gold | 916 gold | KDM gold |
Certified pure gold | Purity level of 91.6% with alloy metal | May contain cadmium as soldering agent |
Official purity certification | Commonly recognised gold purity | Traditional method which is less commonly used |
Accepted widely | Commonly used in India | Less used due to health and environment concerns |
Gold hallmarking is a technique that sets the purity standards of gold ensuring authenticity of gold, thereby offering high resale value of the gold. Hallmarking of gold has other benefits that are mentioned below:
Hallmark gold is a pure and authentic option over non-hallmark gold and buyers must look for the hallmark while purchasing gold jewelry. The importance of hallmark is mentioned below:
There are ten different types of hallmarks used in gold ornaments and the details are given in the table below:
Type | Gold Purity | Features | Uses |
24-Karat Gold | 99.9% | Soft and malleable |
|
22-Karat Gold | 91.6% | Durable and popular for intricate jewellery designs |
|
18-Karat Gold | 75% | Durable and pure | High-end jewellery |
14-Karat Gold | 58.3% | Affordable and durable | Affordable jewellery |
White Gold | Gold alloy with white metals | Shiny, silver-like appearance |
|
Rose Gold | Gold alloy with copper | Warm and reddish-pink hue |
|
Green Gold | Gold alloy with silver and zinc | Greenish tint | Artistic jewellery |
KDM Gold | Gold alloy with cadmium | Solderable without heatingTraditional in India | Traditional Indian jewellery making |
Black Hills Gold | Distinctive gold jewellery style | Rose and green gold leaves on a yellow gold base | Jewellery with unique designs |
Bullion Gold | High-purity gold bars or coins | Investment purposes |
|
Gold ETFs | Financial instrument | Traded on stock exchanges |
|
The two main techniques for hallmarking gold jewelry are laser and stamp and the details about the techniques are mentioned below:
The hallmark gold has high resale value than non-hallmark gold due to its purity and authenticity. Hallmark gold ensures purity level of 91.6% purity and is certified by the Bureau of Indian Standards (BIS), thereby ensuring guaranteed level of purity. Hallmark gold offers a high return on investment and ensures smoother resale processes due to reduced chance of disputes.
The steps to check the hallmark on your gold jewelry are mentioned below:
Note: Currently, the HUID code is not mandatory. |
Visit the official website of the Bureau of Indian Standards (BIS) or use the BIS Care app, to check the gold hallmark online. Enter the Hallmark Unique Identification (HUID) number to verify the purity and authenticity of the gold item registered with BIS.
The gold serial number is also known as HUID number which can be verified by visiting either the BIS website or the BIS Care app. The details of purity, weight, and registered jeweler will be displayed by entering the HUID number.
Check for the hallmark symbol which is usually the BID mark followed by ‘916’ that denoted 22-karat purity level engraved on the jewelry.
The hallmark code for gold jewelry includes purity in carats, BIS logo, HUID number, identification mark of jeweler that ensures the authenticity and compliance with national standards.
Yes, penalties will be charged for selling non-hallmark gold as it is illegal to sell gold ornaments without BIS hallmark as per the BIS Act and rules.
Yes, hallmarked gold jewelry generally costs more than non-hallmarked gold as the former type offers high quality assurance, thereby potentially influencing the price of the gold jewelry.
Yes, your gold jewelry can be hallmarked by visiting a BIS-certified hallmarking centre, where the jewelry will be tested for its purity and the BIS hallmark will be engraved if it meets the required standards.
The KDM charges on gold jewelry is calculated depending on the prevailing gold rate at the time of purchase and the final price of the jewelry is determined by using the following formula: Gold price x weight (in grams) + making charges + 3.00% GST on (jewelry price + making charges).
The Bureau of Indian Standards regulates the Assaying and hallmarking centres by conducting regular audits of the centres to assess the performance of purity test of gold item. Legal actions are taken by BIS in case of non-compliance.
Hallmark gold authenticates the purity of the gold item and is used as collateral in case of gold loan that makes loan approval quicker and offers high loan amount as lenders perceive less risk.
Yes, the customer will be compensated if the hallmarked jewelry does not meet the purity standards. The compensation will be equal to two times the amount of difference calculated depending on the shortage of purity for the weight of such article sold and the testing charges.
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