With a long and distinguished history of excellence in the diamond industry, Rosy Blue is one of the world’s foremost diamantaires. 

Our company began trading as 'B Arunkumar' more than 50 years ago and continues to be a leading, trusted and successful player in the diamond industry. Thanks to a global marketing arrangement,
the Rosy Blue Alliance has presence in 12 countries around the world. Over time, we have become one of the largest and most trusted names in the global diamond industry.

This success is due as much to the integrity of our approach as to the exceptional quality of our diamonds. Rosy Blue is respected by those at every level of the industry for our steadfast commitment to the highest ethical standards. We do not only succeed for ourselves, but also to deliver positive benefits for our suppliers, customers, our employees, and the communities in which we work and live.


Rosy Blue is a diamantaire of international reach and reputation. In each country, we combine the scope and strength of an international business alliance with our local team’s in-depth knowledge of their particular market.

The business is divided into three key operations: Rough Diamond Procurement, Diamond Manufacturing, and Polished Trading. Although independent, these operations are united by a customer-centric approach and underpinned by strong, long-standing relationships. Our dynamic international structure allows us to identify and capitalise on opportunities wherever and whenever they arise.

Manufacturing is the heart of our business and reputation. We have core production centres, working to an advanced series of control systems that drive quality and guarantee the integrity of the pipeline.


‘Over the years we believe to have evolved from a company taking their corporate responsibilities to a company where sustainability is central to our core business and aligned with the corporate purpose.’ 

Amit Bhansali, Member of the Rosy Blue Brand Council and Member Management Board

As a major international business, we see ourselves as a global citizen, with a responsibility to contribute to the environmental and social good of the world. We engage explicitly in a series of initiatives which we believe help us to continuously improve business and operating practices across the value chain and our markets. This is how we progress towards a meaningful social responsibility, tackling the issues most material to our business operations.

Read more on our Sustainability pages.