Where excellence
is skill
& intelligence
is the mark

Hoveniersstraat 2, Room 201
2018 Antwerpen


N.N. Diamonds is a young diamond company which was established in Antwerp (Belgium) in 1991.
Our main focus is on quality, consistency, efficient pricing and service and most importantly confidence.
This has helped us to grow and create a satisfied customer base around the world.
N.N. Diamonds deals with all aspects and has its involvement in all stages of diamond that is from manufacturing to retailing.
We offer our services to all kinds of B2B customers ie wholesalers, retailers and jewelers.
Our manufacturing unit, Jain Diamond Industry (JDI) is based in India, Mumbai.
We also work as buying agents for clients who are located overseas and offer them excellent service and assistance to fulfill their demand and thus enhancing their trust in us.
On a whole we can assure you that buying with N.N.Diamonds is a totally different experience.



Cut is probably the most important, and most challenging, of the four Cs to understand. The brilliance of a diamond depends heavily on its cut.

Colorless diamonds are the most desirable since they allow the most refraction of light (sparkle). Off white diamonds absorb light, inhibiting brilliance.

Most diamonds contain some inner flaws, or inclusions, that occur during the formation process. The visibility, number and size of these inclusions determine what is called the clarity of a diamond.

A carat is the unit of weight by which a diamond is measured. Because large diamonds are found less commonly than small diamonds, the price of a diamond rises exponentionaly to its size.


N.N.Diamonds was established in 1991 in Antwerp, Belgium.
As now for the last 2 decades we are involved in manufacturing and distribution of polished and rough diamonds.

Our family is involved in this business for two generations and this accumulated experience has taught us that the most important aspect of being successful in our business is to know our customers in detail and to build their trust in us.

Our father Rameshchandra Jain started Pratima Gems in Mumbai, India in 1978 and started manufacturing polished diamonds. Subsequently N.N.Diamonds was formed in 1991 to have a global presence.

We are pleased to say that, over the years N.N.Diamonds has made a strong reputation for reliability, trust and confidence.

Our aim is to increase the number of customers and to build a strong relation with them. To achieve our goals we would be shortly opening offices in other countries so we can assist our clients better.

We invite you to join us.

Amish Jain
Gaurav Jain


Our aim has always been to ensure that confidence in our products and services always remains at the highest level. It enables smooth business operations, and ultimately defines the type of clients who work with us. N.N.Diamonds is committed to abiding to these principles. We strongly encourage our customers to do the same, in order to help maintain the integrity of our businesses, the industry, and the image of diamonds and diamond jewelry in the eyes of the most important person, the consumer. We are committed to running our businesses in a manner that we will have a positive impact on the societies with which we engage directly and indirectly, and the environment, through responsible business practices.


Buying and trading of diamonds from known origins which are part of the Kimberly Process only. Avoiding buying and trading of diamonds in and from areas where knowledge of actual conflict and human suffering occurs The provision of proper working conditions (including health, safety, and well-being of workers) Adhering to international fair practices and regulatory frameworks relating to use of labor and employees in the workplace.


Taking action to address concerns of the use of synthetic (lab created) diamonds and treated diamonds with the use of discussion and safeguards for consumer confidence. We are educating our customers in detection methods and safeguards used. In additional to technical skills, the highest professional and ethical standards will be required to ensure that consumer trust in diamonds is maintained. Full disclosure and assurance of natural diamonds used at each stage and at the jewelry level to maintain consumer confidence. The segregation of natural and non-natural diamonds and gemstones at the retail level is highly important to consumer confidence towards their image of diamonds. For further information on how to align your business with NN Diamonds' Responsible Practices Programme, please write to info@nndiamonds.com


N.N. Diamonds

Hoveniersstraat 2, Room 201
2018 Antwerpen

Pratima Gems

2nd Floor, Mansoor Ali Mansion
2nd Bhatwadi Lane, Girgaum
Mumbai - 400004, India

Jain Diamond Industry

9 Rokadia Apartmemt
Rokadia Lane, Borivali (West)
Mumbai - 400092, India.

Jain Jewels

10 Rokadia Apartmemt
Rokadia Lane, Borivali (West)
Mumbai - 400092, India.