Belgian Excellence in Diamonds

since 1893

What we do

Five generations of Antwerp diamond expertise have underpinned the success of one of the world’s oldest diamond firms. At IGC, you are offered natural diamonds of the finest make combined with a personal service. This makes us the preferred supplier to high-end retailers, luxury jewellery brands and esteemed players in the Swiss watch industry.


polished natural diamonds

The product of an endless search for perfection. Sorted according to your wishes with calibrated equipment.

Our extensive product range includes:

  • Brilliant Cut
  • Single Cut (8/8)
  • Fancy Shapes
  • Custom-made Shapes

Our diamonds can be certified by GIA, HRD, IGI or any other leading gemmological institute.

Jewellery Service

Bring your unique designs to life with the assistance of our dedicated jewellery manufacturing service. We offer a comprehensive package that helps you outsource your jewellery manufacturing in full confidence. This service enables you to span your supply chain from reputable mines all the way to the end consumer.

  • Expert assistance from design all the way to quality control
  • Reduce your manufacturing cost
  • From partial to complete outsourcing

Heritage – Belgian Excellence

Conceived by a stonemason’s son, IGC Group is now over one hundred years old and still run by the same Belgian family. Decades of experience have enabled IGC Group to deliver natural diamonds of the finest make that come with a personalized service.

1 in


Rarity of a one carat natural diamond of gem-quality



IGC Group is one of the oldest Sightholders of De Beers Group



Rotations a grinding wheel makes to polish a 20 pointer round diamond

In the picture

Responsible Jewellery Council