Natural polished diamonds from the heart of Antwerp. Every client treated personally. Every order delivered with precision. Every stone supplied to one uncompromising standard.
Est. 2012
Global reach
G+ standard across all
Responsible Jewellery Council
When you contact SRS, you reach our team directly, not a sales system or ticketing queue. Every client, large or small, receives the same personal attention and full commitment to delivery.
G+ colour minimum. IF to SI2 clarity. Top make, every time. We evaluate every stone with two generations of expertise, and we reject anything that falls short — no exceptions.
Direct access to master cutters in the world's diamond capital. Custom ratio matching, clarity ranges, parcel supply — sourced precisely to your specification, every single time.
Every diamond we source and supply begins with a purpose beyond the trade itself. At SRS, we believe that a natural diamond carries meaning far greater than its carat weight. It is worn close to the skin, given at life's most important moments, and treasured across generations. We take that responsibility seriously in everything we do.
G+ colour, IF to SI2 clarity, top make — across every shape we supply.
From calibrated goods to GIA-certified solitaires. G+ colour. IF to SI2 clarity. Top make, always.
We supply both GIA certified and Non-Certified goods — both maintain our G+ colour and top make standards without exception.
"Both options carry the same SRS guarantee. The certification is for your client. The quality is our commitment."
GIA Certified (Rounds 0.30ct+, Fancy Shapes 0.50ct+)
Independent third-party verification for clients who require it.
Non-Certified Stones (size ranges vary by shape)
Production and manufacturing layouts — same standards, greater flexibility.
These standards apply to each stone, each order, every client.
Curated from leading industry publications. Covering diamonds, jewellery, auctions, mining and markets. Articles are listed newest first. Updated regularly.
Mughal, Deccani and Company School paintings: treasures of Indian art from the 16th to the 19th century Christie’s
Read Article →De Beers Moving Ad Dollars Into Desert Diamonds for Bridal jckonline.com
Read Article →Market Comment - Weekly Diamond News - April 9, 2026 Rapaport
Read Article →De Beers Partners with Designers on New Desert Diamonds Bridal Collection Rapaport
Read Article →Sotheby’s to Showcase 33ct. Emerald Ring in Hong Kong Rapaport
Read Article →NDC launches World Diamond Day to drive global natural diamond narrative diamondworld.net
Read Article →World Diamond Day Dazzles With Heartfelt Posts and Stories jckonline.com
Read Article →Gemologists Launch AI-Aided Gemstone Lab Rapaport
Read Article →De Beers Publishes Archive on 12 Historic Indian-Origin Diamonds diamondworld.net
Read Article →CHRISTIE'S PRESENTS THE PROPERTY OF QUINCY JONES Christie's - Press center
Read Article →Rio Tinto’s Diavik Diamond Mine Ends Production jckonline.com
Read Article →GN Diamond’s New Dedicated Whatsapp Business Line instoremag.com
Read Article →Each card links to the publisher’s website so you can read the full article there. SRS Diamonds does not host, reproduce, or claim rights in that material; titles and short summaries are shown only to help you find stories of interest. Trademarks and content belong to their respective owners. Links are for convenience and do not imply endorsement or affiliation. Updated regularly.
Sources include: Rapaport · JCK · Bloomberg · The Diamond Press · Diamond World · National Jeweler · Christie's · Sotheby's
Throughout the year, we bring SRS Diamonds to the world's leading jewellery trade events. Come meet the family.
We will have a physical booth at the following shows. Come see our full range in person, meet the team, and discuss your requirements directly.
One of the world's most prestigious gem and jewellery fairs. Find us at our dedicated SRS Diamonds booth, where we'll be showcasing our full range of shapes and available inventory.
A second Geneva presence in 2026. Visit us at our booth to explore our collection, discuss custom sourcing requirements, and meet the SRS family in person.
Europe's premier jewellery trade fair. SRS Diamonds will be exhibiting with a dedicated booth — a perfect opportunity to view our inventory and discuss your requirements.
In addition to our own booths, we attend the following fairs to stay current with the market and connect with clients. Reach out in advance to arrange a meeting.
The premier North American jewellery trade show. We attend regularly — contact us to arrange a meeting.
Asia's most important jewellery trade event. September 2026 edition — contact us to arrange a meeting in advance.
Let us know which fair you'll be at and we'll make sure to schedule time together. Booth details will be updated on this page as they're confirmed.
Every stone that passes through SRS is handled by a team that cares. When you work with us, you work with people, directly and personally.
SRS Diamonds is built on expertise, trust and personal responsibility. Every member of our team plays a dedicated role, from sourcing and evaluation to client relationships and delivery. When you work with us, you deal with people who know what they are doing and stand behind the stones they supply.
Rishi Jain has spent his entire professional life in the natural diamond trade. His career began at the age of eighteen, driven by a genuine love for diamonds and the industry built around them. Over more than three decades, he has developed one of the most thorough and rounded understandings of the trade available.
Rishi's philosophy has always been rooted in something simple: a perfect diamond creates a moment of pure joy for the person who receives it. That belief shapes every decision made at SRS Diamonds.
From our family to yours.
SRS Diamonds bv supplies natural polished diamonds from the heart of the diamond district — to manufacturers, traders and jewellers in 20+ countries who need dependable quality and straight answers. Our stock runs from calibrated parcels to GIA-certified rounds and fancies, consistent with the ranges and detail you will find elsewhere on this site.
The business is run today by seven specialists under one roof. Important stones are reviewed by more than one trained eye before they leave the office. Screening, sourcing discipline and the quality framework we publish on our diamond and process pages apply every day, without exception.
We meet partners at major international fairs, but Antwerp remains home — the CBS Building on Schupstraat that our clients know. For shapes, certification and how we work in practice, browse the site; for who you are dealing with, see Our Team.
SRS Diamonds was founded in Antwerp in November 2012. In the early years the core business was loose diamonds — small sizes under one carat, mainly Non-Certified rounds in parcels for manufacturers and traders. Those goods sit at the base of the jewellery industry; learning them thoroughly is what set the technical standard for everything that followed.
As the next generation joined, the company expanded into GIA-certified stones across all shapes, rounds and fancies. Stock today ranges from small sizes up to about five carats, with select specials toward the ten-carat mark — growth driven by client trust and by the depth of experience applied to every category we touch.
The timeline below marks the main steps along that path, from first international show to our current headquarters and presence at fairs worldwide.
From a single vision in Antwerp to clients in 20+ countries across the natural diamond trade.
Three things that set us apart. Not one. All three, every time.
Every stone is assessed by multiple trained eyes within our team. G+ colour, IF to SI2 clarity, top make. Without exception. Our standard never moves.
When you contact SRS, you reach our team directly, not a ticketing system or call centre. Every client, large or small, receives the same personal attention and commitment.
Your deadline is our deadline. We hold ourselves to the same standard we expect from our own suppliers. We understand exactly how it feels when goods arrive late.
For over a decade, we have operated from Antwerp's diamond district, the world's diamond capital. Direct relationships with master cutters, access to the finest goods, and expertise built over generations.
SRS Diamonds bv
1-7 Schupstraat, CBS Building 501
2018 Antwerp, Belgium
Operating in the world's diamond capital since 2012. We welcome visits by appointment.
Precision at every step, from source to your doorstep.
Direct relationships with Antwerp cutters and manufacturers. Access to quality goods from the heart of the world's diamond capital.
Every stone is assessed by multiple trained eyes across our team before it reaches a client — ensuring it meets our exact standards. This collective scrutiny is what separates us.
Precise measurement and calibration. Colour and clarity verification. Parcel matching for consistency across your entire order.
We listen to your exact requirements: desired ratios, clarity and colour ranges, size distribution. Then we match our inventory to your specification precisely.
As part of our commitment to supplying only natural polished diamonds, goods are routinely passed through screening equipment in our office as a standard part of our process. We use specialist detection instruments — including the Yehuda Sherlock Holmes and the M-Screen+ — to help confirm that stones are consistent with natural diamond characteristics.
Insured shipping worldwide. Full documentation and certification where required. An ongoing relationship, we are here after the order too, not just before it.
Manufacturer, brand, trader, or private client — every enquiry is handled personally by the SRS family.
Complete the form below and we'll respond personally within 24 business hours.
Fields marked with * are mandatory.
Every enquiry is responded to personally within 24 business hours. For urgent needs, please call us directly.
Everything you need to understand a diamond:
From the four characteristics that define its quality, to why natural always matters.
The universal language of diamonds. Cut, Colour, Clarity and Carat: four characteristics that determine every stone's quality, rarity and value.
Cut is the only C created entirely by human hands, and it is the single most important factor in a diamond's beauty. A perfectly cut diamond will reflect light internally from facet to facet and return it through the top, creating that signature brilliance.
Poor cut, regardless of colour or clarity, produces a dull, lifeless stone. At SRS, we supply top make quality only. This is non-negotiable. A perfectly cut round brilliant diamond can internally reflect up to 83% of the light entering the stone; the remaining 17% is reflected off the surface. Every reduction in cut quality directly diminishes that internal reflection, producing a visibly less brilliant result.
GIA Cut Grades
Did you know? The finest cut round brilliant diamond internally reflects approximately 83% of all light entering the stone. The remaining 17% is reflected off the surface. Stones cut to lesser standards return progressively less light, resulting in diminished brilliance and fire.
GIA Colour Scale: International Standard
The GIA colour scale is the global standard used by every major diamond laboratory worldwide. SRS Diamonds sources exclusively to this standard.
SRS Minimum: G Colour
The GIA colour scale runs from D (perfectly colourless) to Z (visibly yellow or brown). The less colour a diamond has, the rarer and more valuable it is.
G is the lowest colour grade that appears colourless to the naked eye when set in jewellery. Below G, subtle yellow begins to show, particularly in larger stones and step cuts. This is why G is our floor, not a ceiling. We never go below it.
D, E, F grades are considered colourless. G, H are near-colourless. SRS supplies G and above, meaning every stone we sell appears white and bright to the human eye.
Almost all diamonds contain natural inclusions, which are tiny internal characteristics formed during their creation billions of years ago. Clarity measures how many inclusions are present, and how visible they are.
SRS supplies IF (Internally Flawless) through to SI2 (Slightly Included). In this range, inclusions are either invisible to the naked eye, or visible only under 10× magnification.
Full GIA Clarity Scale
SRS supplies IF through SI2. FL and I1–I3 are outside our standard range.
Custom Clarity Sourcing
We go beyond standard grading. A client may require a VS2 stone where no black crystal is visible on the table. We source and verify to exactly that specification.
This level of precision sourcing is what we do. Your specification is our brief, not a complication.
Weight Ranges We Supply
Specific weights to 3 decimal places available on request
Carat is the measure of a diamond's weight. The word derives from the carob bean, the seed of the locust tree, which ancient gem traders used as counterweights due to its remarkably consistent weight. Over centuries of international trade, the standard was formalised: the carob bean's average weight of 0.197 grams was rounded to exactly 0.2 grams, which remains the definition of one carat to this day. It is often the first characteristic buyers specify, but it works in combination with cut and clarity to determine visual size.
At SRS, we source to exacting weight specifications. If a client requires a specific stone weight to the thousandth of a carat. For example, 0.503ct. We source and match to that precision.
This level of specification matching is standard practice for us. It ensures perfectly matched sets, consistent productions runs, and exact per-stone economics for manufacturers.
Round diamonds traded in parcels are categorised by sieve — calibrated plates through which stones fall by diameter, separating them by size and weight. Understanding these grades is fundamental to reading the diamond trade.
Two stones that look identical. One took 3 billion years to form. The other took 3 weeks. The difference matters more than the industry lets on.
"A natural diamond is not just a stone. It is a record of the Earth's history, compressed into something you can hold."
SRS Diamonds does not supply lab-grown stones. We deal exclusively in natural, polished diamonds.
Every stone we source, evaluate and supply is a natural, polished diamond, with all the rarity, provenance and value that entails.
Certified diamonds have been assessed by an independent gemological laboratory. The certificate is a permanent, objective record of that stone's exact characteristics.
The world standard in diamond grading. The most trusted and widely recognised certificate globally.
Visit GIA →Europe's leading diamond laboratory, based in Antwerp, our home city. HRD certificates are widely accepted across European jewellery markets.
Visit HRD →A globally recognised laboratory with a strong presence in Asian and North American markets. IGI certified stones are accepted by major international buyers.
Visit IGI →Diamonds carry meaning. We ensure ours are sourced with integrity.
At SRS Diamonds, we believe how a diamond is sourced matters as much as its quality. We are committed to responsible practices across our entire supply chain.
We source only natural, ethically traded diamonds through verified supply chains. Our clients can trust not only the quality of our diamonds, but the integrity behind them.
SRS Diamonds is a certified member of the Responsible Jewellery Council, the leading standard-setting organisation for the jewellery and watch industry. Our membership reflects our commitment to ethical, human rights, social and environmental practices.
Visit RJC WebsiteAll diamonds sourced through verified, responsible supply chains compliant with the Kimberley Process.
Clear provenance documentation for every parcel. Transparency is our baseline, not an afterthought.
Responsible business is sustainable business. Our practices are built for the long term — for our clients, partners, and the industry.
Answers to the questions we hear most often from new and existing clients.
Yes — ratio matching is one of our core capabilities. For fancy shapes (pear, oval, marquise, heart), we source and supply to your exact length-to-width specification. Whether you need elongated ovals at 1.45–1.50, or balanced pears at 1.30–1.35, we match your brief precisely.
Absolutely. We source to exact weight specifications, including to the thousandth of a carat (e.g. 0.503ct, 1.012ct). This precision is essential for manufacturers working to tight per-stone economics or matched-parcel production runs, and it is standard practice for us.
Yes. Standard clarity grades are a starting point — we go further. For example, if you require a VS2 stone where no black crystal is visible on the table, or a SI1 with no inclusions in the centre, we source and visually verify to that specification. Your requirement is our brief.
We do not enforce a minimum order. We work with manufacturers, brands, traders and private clients across a wide range of order sizes. Every order — regardless of size — is handled with the same personal attention and care.
Yes — both. GIA certified stones are available from 0.30ct and above for rounds, and from 0.50ct and above for fancy shapes, for clients requiring independent verification. Non-Certified goods are available across all size ranges for production and manufacturing. Both options are held to the same G+ colour and top make standards.
Simply send us an enquiry using the contact form or reach us directly by email or phone. Tell us your requirements, shapes, sizes, clarity, colour and any specific parameters — and we will respond personally within 24 business hours. You deal directly with the SRS family from the first conversation.
Can't find what you're looking for? Reach out directly.
Last updated: 2026. SRS Diamonds bv is committed to protecting your personal data in accordance with the EU General Data Protection Regulation (GDPR).
SRS Diamonds bv is a diamond trading company registered in Belgium, with offices at 1-7 Schupstraat, CBS Building 501, 2018 Antwerp, Belgium. We are the data controller for personal data collected through this website.
Contact: info@srsdiamonds.com
When you submit an enquiry through our contact form, we collect the following personal data:
We do not use cookies, tracking scripts, or analytics tools on this website. We do not collect data passively.
We use your personal data solely to:
We do not sell, rent or share your personal data with third parties for marketing purposes.
We process your data on the basis of legitimate interests (Article 6(1)(f) GDPR) — specifically, responding to business enquiries submitted voluntarily by you — and, where applicable, for the performance of a contract (Article 6(1)(b) GDPR).
We retain personal data only as long as necessary for the purposes described above, or as required by Belgian commercial law. Enquiry data is typically retained for a maximum of 3 years.
Under GDPR, you have the right to: access your personal data, request correction or deletion, object to processing, and lodge a complaint with the Belgian Data Protection Authority (www.dataprotectionauthority.be). To exercise any right, contact us at info@srsdiamonds.com.
For any privacy-related questions, contact SRS Diamonds bv at:
info@srsdiamonds.com
+32-3-2330827
1-7 Schupstraat, CBS Building 501, 2018 Antwerp, Belgium
Last updated: 2026. Please read these terms carefully before using this website.
This website is operated by SRS Diamonds bv, a company registered in Belgium. By accessing this website, you agree to these terms. This website is intended for business-to-business use by jewellery manufacturers, brands, traders and professional buyers.
The information on this website is provided for general informational purposes. While we make every effort to keep content accurate and current, SRS Diamonds bv makes no warranties regarding the completeness, accuracy or suitability of the information for any particular purpose. Product availability, specifications and pricing are subject to change and must be confirmed directly with SRS Diamonds bv.
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