Our close relationships with the world’s premier diamond mining companies — including De Beers and Alrosa — enables us to assure our clients a regular and unrivalled supply of rough diamonds well into the future. We participate in all major tenders and auctions. Our rough procurement and polished diamond divisions are in continuous, open communication. This enables us to tailor our procurement as much as possible to the demands of our customers at the time. Depending on our own needs in polished stones, we trade the rough that will not be sent for manufacturing.


Our manufacturing centres around the world combine the traditions of diamond craftsmanship with the most advanced polishing technology and highest technical standards. We manage our production with an advanced series of internal control mechanisms to drive quality and maintain the integrity of the pipeline. All the steps to bring the finished product to the end consumer are undertaken with transparent and respectable practices. We monitor all the diamonds we handle, ensuring their ethical provenance. This is also verified through a number of third-party assurance programmes, including the Forevermark programme from De Beers. Because of the large proportion of in-house manufacturing, we can minimize the risk of undisclosed synthetics entering our supply chain.


Erum is known worldwide as a market-maker in polished diamonds. By combining our own manufactured diamonds with polished stones sourced from the open market, we ensure a consistent depth of inventory, to meet the needs of many different clients. “In fulfilling the business needs of some of the most prestigious jewellery houses in the world, we take our responsibility for managing our supply chain integrity very seriously. We look after our clients by offering tailored, value adding services, but product integrity represents the foundation of how we serve all our clients.”


Over many decades, Erum has created quality jewellery manufacturing skills and capabilities, centred around our customers needs. From design to creation, we endeavour to offer this final step of the diamond dream. Members of our dedicated distribution teams are in constant and close communication with our valued customers, to ensure that every detail of the process is aimed towards the ultimate goal: the promise of a beautiful jewel.

Shopping Cart

Contact Us

Wherever you are in the world, we have the local expertise and the global reach you need.