Certified Loose Diamonds from Antwerp.
- 100% Ethically sourced
- Cheaper than fancy stores
- GIA - HRD - IGI Certified
Up to 75% Cheaper
100% Ethically Sourced
95% Next Day Delivery
Our collection
Choose your Diamond Shape
From the classic round brilliant to the elegant emerald cut — every shape certified and ready to ship.
Round Brilliant
Most Popular

Oval
Elegant Length

Princess
Modern Classic

Cushion
Vintage Romance

Emerald
Art-Deco

Pear
Distinctive

Radiant
Bold Sparkle

Marquise
Maximum Presence

Asscher
Architectural

Heart
Timeless Elegance
The Antwerp Advantage
Why Buy Diamonds in Antwerp?
500 years of diamond expertise. Certified stones, source pricing, no middlemen.
Whether you're searching to buy diamonds antwerp buyers love — for an engagement ring or a special occasion — Diamantwerp offers the most competitive selection of certified diamond antwerp district buyers can access, direct from Pelikaanstraat 62.

What Makes Our Diamonds Different
Every diamond we sell comes with an independent certificate from one of the world's three most respected gemological institutes: GIA (Gemological Institute of America), HRD Antwerp (High Council for Diamond of Antwerp, or IGI (International Gemological Institute). These certificates verify the exact quality of your diamond based on the 4 C's — cut, clarity, colour and carat weight.
Whether you're a jeweller looking for wholesale loose diamonds in Antwerp or a private buyer searching for the perfect engagement ring diamond, our team of experienced diamond specialists will guide you through every step — from selection to delivery.
Buying diamonds in Antwerp also means buying with complete confidence in their origin. Every diamond in our collection is fully compliant with the Kimberley Process Certification Scheme — the international framework that guarantees your diamond has not been used to finance conflict. As members of the Antwerp World Diamond Centre, we go further: we source exclusively through Belgium's regulated diamond supply chain, the most scrutinised in the world. If ethical diamond sourcing matters to you — and it should — Antwerp is the right place to buy, and Diamantwerp is the right dealer.
The Process
How to Buy Diamonds from Antwerp
Four simple steps to your perfect loose natural diamond.
Step 01
Choose your Diamond
Browse our collection and select the certified natural diamond that matches your requirements for shape, size and budget.
Step 02
Personal Consultation
We begin preparing your order the same day. If we have any questions about your selection, we'll contact you personally.
Step 03
Fast Delivery
Same-day personal delivery whenever possible. If not, your diamond ships the next business day with full insurance.
Step 04
After-Sales Support
Questions afterwards? No problem — our diamond specialists are available for advice long after your purchase.



Client Experiences
What Our Clients Say
Real experiences from clients who purchased certified loose diamonds through Diamantwerp.
Diamantwerp
Out of 5 starsOverall rating out of 7 Google reviews
Common Questions
Frequently Asked Questions
Everything you need to know about buying certified loose diamonds.
Are Diamantwerp diamonds real natural diamonds?
Yes — every diamond in our collection is a 100% natural diamond, formed deep within the earth over billions of years. We do not sell lab-grown or synthetic diamonds. Each stone comes with an independent grading certificate from GIA, HRD Antwerp, or IGI, confirming its natural origin and exact quality characteristics. Learn more on our diamond certification page.
Why are diamonds cheaper in Antwerp?
Antwerp has been the world's diamond capital for over five centuries. More than 80% of rough diamonds and 50% of polished diamonds pass through the Antwerp diamond district — creating unmatched competition and efficiency. Because Diamantwerp operates directly from Pelikaanstraat 62, in the heart of this district, we cut out the middlemen that drive up prices at traditional jewellers. This allows us to offer certified loose diamonds at up to 75% below high-street retail prices.
Can private buyers purchase from Diamantwerp?
Absolutely. While we work closely with professional jewellers across Europe, private buyers are equally welcome. Whether you're searching for the perfect engagement ring diamond or investing in a high-quality loose stone, our specialists guide you through the entire process — from selecting the right shape and understanding the 4 C's to final delivery.
What diamond certifications do you offer?
Every diamond we sell comes with an independent certificate from one of the world's three most respected gemological institutes: GIA (Gemological Institute of America), HRD Antwerp (Hoge Raad voor Diamant), or IGI (International Gemological Institute). These certificates objectively grade your diamond on cut, colour, clarity, and cut, carat weight — ensuring full transparency about what you're buying.
How quickly can I receive my diamond?
We aim for same-day personal delivery within Belgium whenever possible. If same-day delivery isn't feasible, your diamond ships the next business day via insured courier. International deliveries typically arrive within 2–4 business days. Every shipment is fully insured for its certified value.
Do you offer a return policy?
Yes. We want you to be completely satisfied with your purchase. Full details of our return and refund terms are available on our Refund & Return Policy page. If you have any questions before or after your purchase, contact our team — we're here to help.
Diamond Education
Learn More About Diamonds
Expert insights on choosing, buying and understanding diamonds.
