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Hallmarking is the accurate determination and official recording of the proportionate content of precious metal in precious metal (gold or silver) articles. Hallmarks are thus official marks used in many countries as a guarantee of purity or fineness of precious metal (gold or silver) articles.

1. What one should look for in an Hallmarked gold article?

Gold Hallmark consists of following

1) BIS Mark

2) Purity grade/fineness (it can be any one of the following )
958 Corresponds to 23 Carat
916 Corresponds to 22 Carat
750 Corresponds to 18 Carat

3) Assaying/Hallmarking Centre’s Identification Mark

4) Year of Marking – denoted by a code letter e.g.
‘A’ for year 2000 ‘B’ for year 2001
‘C’ for year 2002 ‘D’ for year 2003
‘E’ for year 2004 ‘F’ for year 2005
‘G’ for year 2006 ‘H’ for year 2007
‘J’ for year 2008 cont.....

5) Jeweler’s Identification Mark

2. What are the benefits to Customer?

Provide third party assurance and satisfaction that customer gets right purity of gold for the given price (value for money).

3. What are the objectives behind instituting Hallmarking Scheme?

To protect consumer against victimization due to irregular gold quality.

4. How does the Jeweler benefit?

It will provide clear indication of his capability, strong evidence of commitment to quality and assurance of consistency in purity and quality of gold jewellery.

5. Who operates the Hallmarking Scheme?

It is a voluntary scheme being operated by BIS under the BIS Act 1986. BIS is operating the scheme through its network of Regional/ Branch Offices all over the country. As per this scheme the licence is granted to a jeweler for certification of purity of gold jewellery in accordance with IS 1417 (IS 2112 for Silver). A licensee jeweler has to get the jewellery hallmarked through any of the BIS recognized Assaying and hallmarking centres.

6. What control BIS has on Licensee Jewelers and Assaying and Hallmarking Centres?

Regular surveillance audit of Assaying and hallmarking centres and testing of random market samples drawn from licensee jewelers is carried out. Renewal of recognition of hallmarking centres and jewelers is based on performance every three years. If any jeweler or assaying and hallmarking centre is not found conforming to the requirements, action is taken as per laid down procedure so that credibility of scheme is maintained.

7. What is the Role of Government of India?

Govt. of India took cognizance of the need for protecting the public in its purchase of gold jewellery and the prevention of adulteration, be it deliberate or accidental. BIS was identified as the sole body to operate Hallmarking Scheme in India. BIS started Hallmarking Scheme for gold jewellery .

Government of India constituted a Committee in August 2003 to examine the ways and means of securing consumer interest in the marketing of gold products with Secretary (Consumer Affairs) as Chairman. The Committee comprises of representatives from BIS, Ministry of Finance, Ministry of Commerce, RBI, India Govt. Mint, Gem and Jewellery Export Promotion Council, All India Sarafa Association, New Delhi, World Gold Council (WGC), MMTC, representative of a reputed Jeweller and Consumer Activists.

8. Does BIS Scheme Cover hallmarking of Gold Medallions?

Gold medallions (of the shape of coins) of 995 fineness and below are being permitted to be hallmarked.

A certified diamond is a diamond accompanied by it's very own report done by an independent lab, free of any special interests. These reports are not certifications in the sense that they do not guarantee anything but are there for the purpose to give a 3rd party observation using an established set of methods understood by everybody in the trade to grade the 4 c's (clarity, cut, color, carat) with additional information i.e., flourescence, polish, symmetry, etc.

Newer reports will also give a detailed description of a diamonds cut grades along with detailed numbers and percentages.

There are many labs that provide this service, however within the trade there are different levels of strictness used when grading. Hence a report is only as strong as the reputation of the lab. Most people are familiar with GIA (Gemological Institue of America) for certification of loose diamonds and IGI (International Gemological Institute) & GII (Gemological Institute of India). These labs are known to be one of the most consistent and strictest with their grading, they are established name and reputation in the industry and most consumers recognize it. We always encourage our clients to purchase a certified diamond, however, in some cases a clients budget and desire for a large stone does not allow then to purchase a certified stone.

1. Why certified diamond?

A diamond grading report adds an increased comfort-level to your purchase. Because the quality of your purchase has been independently verified, you can feel assured that you have made a wise purchase and that you have received exactly what you have paid for. A diamond grading report adds value to a diamond. The quality assessments made by independent labs, such as GIA, IGI or GII, are recognized worldwide.

A certified diamond comes with a diamond grading report guaranteed by an accredited gem lab. This report assures the customer that the diamond is independently recognized as possessing all the qualities specified by that report. All the diamond jewellery featured in our Store are certified by either IGI or GII. A certificate does not change the nature of a diamond in any way. The difference between a certified and an uncertified diamond is that, with the certified diamond, you have tangible, legal assurances as to the particular nature and quality of the diamond you are purchasing. On the other hand, an uncertified diamond is not accompanied by a diamond grading report, and therefore its stated quality is based only on the word of the seller.

2. Carat

The weight or size of a diamond is measured in carats (ct.).
One carat weighs 1/5 of a gram and is divided into 100 points, so a diamond weighing 1.07carat is referred to as "one carat and seven cents."

For Example
0.75 carat = 75 cents.
1/2 carat = 50 cents.
1/4 carat = 25 cents.

3. Color

Most diamonds of gem quality used in jewelry vary in shade from completely colorless down to a visible yellow or brown tint.
Describes the amount of color the diamond has. This can range from colorless to yellow with slight tints of yellow, gray or brown. Colors can also range from intense yellow to brown, blue, green, pink and red. These fancy colors are rare and more valuable.

The rarest and most expensive are diamonds in the colorless range graded D,E and F on a scale that descends to Z.

To determine the correct color, all submitted diamonds are compared to an internationally accepted master set of stones, the colors of which range from D, or colorless (the most sought after) to Z, the most yellow/brown - aside from "fancy" yellow or brown.

4. Clarity

Since diamonds form under extreme heat and pressure, internal and external characteristics are common. These characteristics help gemologists separate natural diamonds from synthetics and simulants, and identify individual stones.

F -Flawless Free from all inclusions or blemishes.
IF- Internally Flawless No inclusions visible at 10x magnification
VVS1 -Very Very Slightly Included #1 inclusions that are extremely difficult to locate at 10x
VVS2- Very Very slightly Included #2 inclusions that are extremely difficult to locate at 10x
VS1 -Very slightly included #1 inclusions that are very difficult to locate at 10x
VS2 -very slightly included #2 minor inclusions that are somewhat difficult to locate at 10x
SI1 -Slightly included #1 Noticeable inclusions that are very easy to locate at 10x
SI2- Slightly included #2 noticeable inclusions that are easy to locate at 10x
I1- Included #1 obvious inclusions somewhat easy to locate with the unaided eye
I2 -Included #2 Obvious inclusions easy to locate with the unaided eye.
I3- Included #3 Obvious inclusions very easy to locate with the unaided eye.

IGI grading reports show plotted diagrams of clarity characteristics marked in red for internal, and green for external features; they are useful for identification.
I.F. : Internally Flawless
Free of inclusions. Only insignificant blemishes visible under 10x magnification.

VVS1 - VVS2 : Very Very Slightly Included
Minute inclusions that are very difficult to locate under 10x magnification.

VS1 - VS2 : Very Slightly Included
Minute inclusions that are difficult to somewhat easy to see under 10x magnification.

SI1 - SI2 : Slightly Included
Noticeable inclusions that are easy to see under 10x magnification.

I1 - I2 - I3 : Included
Inclusions that are obvious to a trained grader under 10x magnification and can be easily seen face-up with the unaided eye.

5. Cut

While nature determined the color and clarity of a natural diamond, man is responsible for the cut quality which brings it to life.

The planning, proportions, cutting precision and details of finish determine how brilliant, dispersive and scintillating the diamond will be. If the cutting factors under man's control are not optimized, the appearance of the diamond can be adversely affected.

Diamond faceting has changed over time, particularly as lighting has evolved. There are many shapes and cutting styles, each with different visual properties. The most popular diamond in the age of modern electric lighting is the Round Brilliant.

Elements of diamond beauty can be described as brilliance (all light returning to the eye), dispersion or 'fire' (seen as white light is broken into spectral colors), contrast patterns (contrasting light and dark areas created by the viewer's reflection) and scintillation or 'sparkle' (seen as the diamond, the light source or the observer move). These qualities combine to create the life of the diamond and the way it reacts to lighting and environment.

The determine the cut of a diamond it is graded from excellent to very poor grade.

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What our Clients say

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    I buy jewellery from Ganesh Jewellers for several years and
    they have the best collection.

    Mr. A. D'souza, Orlem, Malad(w)

  • Image

    They have very good and unique designs, also the salesman
    are very courteous, Very happy with the service. Keep it up
    Ganesh Jewellers ! All the Best !

    Mrs. R.G. Sharma, Link Road, Malad(W)

  • Image

    Very nice collection. Moreover, the collection of gold and
    diamond in antique look, Kundan sets were amazing!

    Mr. D. Desai, Kandivali


At Ganesh Jewellers, we always believed in selling the best to our customers. Our 22ct gold ornaments stamped with 916 conforms to strict international Hallmarking standards.
Gold tends to gather a film of oil from lotions, powders, soaps, and natural skin oils which take its beauty away from it. Chemicals in the air can slightly oxidize the gold depending on the karat grade used. A little time and effort on your part will keep your jewellery looking sparkling new just like the day you first wore it.
Using harsh chemicals to clean gold, will reduce its luster; so use any mild liquid detergent found in your home (such as dishwashing soap) with warm water in a bowl. Dip the jewellery pieces for a minute and brush the pieces with a toothbrush, gently while they are in the bowl. Then transfer them to a wire tea strainer and rinse under warm running water. Pat dry with a soft, lint-free cloth. Once in a while, gold jewellery can be dipped in boiling water with a pinch of soda to renew its shine.
Appropriate storage of gold jewellery is esssential, even if you do not wear your jewellery that often. Keep your precious pieces in a fabriclined jewel case, or a box with compartments or dividers. If you can not separate your jewellery in your jewellery box, wrap each piece individually in tissue paper or place in small plastic pouches separately as gold pieces will rub against each other and wear off.

Note :- You must remove gold jewellery before swimming as chlorine erodes soft metal.
Buying a Diamond, treasuring it and passing it on to future generations is one of the deepest investments you shall make. We, at Ganesh Jewellers understand your desires to buy the best while expressing the most. While you spend money on precious diamond jewellery, do also spend a few moments to know how to care for those precious chiseled pieces.
Keep every piece of diamond jewellery separately in a box lined with velvet. This will protect it from dirt. If you want to keep more than one jewellery item in a box, wrap smaller pieces in tissue paper to guard against scratches. Handle your diamonds sparingly as your finger provides enough oil from your skin to alter the way your diamond looks.


Putting Maximum efforts; while buying your gemstone jewellery is very essential, mainly because it's a high-end purchase and it stays with you (and your generations) for a long time. Here are a few tips.

Note:- Be careful not to place diamond jewellery with gold jewellery in boxes as the sharp edges of the diamonds will scratch the gold and both will loose their luster."
Irradiation: This treatment brings out color and removes imperfections.
Heat Treatment: Gemstones are heated at high temperature to enhance their color.
Coating: Some gemstones are dipped in petroleum products to bring out their color.
There are many fake replicas for natural gems and there are many who will sell the replicas as naturals. Stones that look too perfect, mostly turn out to be fake or irradiated and dyed.
Check whether the stone is natural or synthetic
Check whether there are any noticeable scratches on the gemstone.
Check whether the color is vivid.
Check the pair of gemstone (if you are buying one for earrings or cuff-links) are matched.
Look for the best quality stones with good colour.
Bead should have a good size holes, so you can use stronger threads."
If bead is sold in 16"strand, make sure it is not 14" or 15".
Make sure beads are not cracked or chipped by the holes that may tear the thread.