About Us
Hello, I am Liliana Benkerroum
Chief ExecutiveAs Chief Executive of CrownStone Diamonds, I am proud to lead a company built on five decades of excellence and a legacy of trust. Our mission is to source and deliver the world's most exceptional diamonds, gemstones, and fine jewellery, while upholding the highest standards of integrity and responsible sourcing.
Professional skills
With extensive experience in the international diamond trade, I am committed to fostering strong partnerships with mining regions in Botswana, Canada, Namibia, and South Africa. Our team combines expertise in gemmology, ethical sourcing, and client service to bring rare beauty to discerning collectors worldwide.
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Business Consultants
82% -
Client Communication
90%
Five Decades of Excellence. A Legacy of Trust.
Five Decades of Excellence
For five decades, CrownStone Diamonds Trading Company has been dedicated to the world of exceptional diamonds, precious gemstones, and fine pearl jewellery.
A Legacy of Trust
Our heritage began in Geneva, Switzerland, where the company was formerly known as Bankers Jewelries — a tradition founded upon discerning taste, uncompromising quality, and trusted personal relationships.
A World of Rare Beauty
Today, CrownStone Diamonds continues that legacy on an international scale, working with some of the world's most respected partners within the diamond and jewellery industry.
Our Legacy
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Years of Excellence
50+ -
Trusted Relationships
100%
Five Decades of Excellence. A Legacy of Trust. A World of Rare Beauty.
Our Vision
To deliver excellence and leadership in all aspects of the diamond value — both uncut and cut — keeping responsible and sustainable sourcing initiatives as the benchmark and the core focus of all our operations.
- Excellence & Leadership
- Responsible Sourcing
- Sustainable Operations
Our Mission
Together with teamwork, passion, and innovation, we will accelerate sustainable and responsible sourcing and strive to achieve excellence in all operations and activities.
- Teamwork & Passion
- Innovation
- Operational Excellence
The Story Behind the Stones...
Five decades of excellence.
A legacy of trust.
A world of rare
beauty.
Every exceptional diamond begins with its origin. Our diamonds are sourced from established mining regions in Botswana, Canada, Namibia, and South Africa — regions renowned for producing diamonds of exceptional character and quality.
Following recovery from the earth, each diamond enters a carefully regulated journey. Diamonds from Botswana, Namibia, and South Africa are transported to established sorting centers within their respective countries. Diamonds originating in Canada are transported to Botswana, where they undergo sorting and preparation.
From their journey beneath the earth to their transformation into a remarkable jewel, every stone carries a story of rarity, craftsmanship, and enduring beauty.
For five decades, CrownStone Diamonds Trading Company has been dedicated to the world of exceptional diamonds, precious gemstones, and fine pearl jewellery. Our heritage began in Geneva, Switzerland, where the company was formerly known as Bankers Jewelries, establishing a tradition founded upon discerning taste, uncompromising quality, and trusted personal relationships.
Today, CrownStone Diamonds continues that legacy on an international scale, working with some of the world's most respected partners within the diamond and jewellery industry. Through these longstanding relationships, we source and deliver exceptional diamonds, gemstones, and fine jewelry to a distinguished clientele spanning the globe.
To deliver excellence and leadership in all aspects of the diamond value — both uncut and cut — keeping responsible and sustainable sourcing initiatives as the benchmark and the core focus of all our operations.
Together with teamwork, passion, and innovation, we will accelerate sustainable and responsible sourcing and strive to achieve excellence in all operations and activities.
At CrownStone Diamonds, we believe that true luxury extends beyond the brilliance of a gemstone. It is reflected in provenance, integrity, expertise, discretion, and personal service.
For fifty years, our name has been associated with carefully selected stones, trusted international relationships, and an unwavering appreciation for the extraordinary.