About OCGems

At OCGems, we specialize in the creation of exceptional loose polished diamonds and bespoke diamond jewellery, thoughtfully crafted to reflect each client’s unique vision. Proudly based in South Africa, our work is guided by precision, master craftsmanship, and a deep commitment to ethically sourced natural diamonds.

From premium certified stones to one-of-a-kind custom creations, we bring brilliance, transparency, and integrity to every stage of the journey—transforming meaningful moments into timeless treasures.

Our Origins

OCGems was founded in 2015 as a first-generation diamond cutting and polishing company rooted in Kimberley, South Africa—the historic heart of the world’s diamond story. Inspired by this rich heritage, we are driven by a passion for tradition, precision, and uncompromising excellence in every diamond we shape and every piece of jewellery we create.

Our Vision

Our Mission

Our Purpose

To create beauty In our world through the products we craft and lives we positively impact.

We pursue this vision by:

  • Deeply engaging our clients and aligning our brand with what they value most.

  • Upholding complete transparency and integrity in every interaction.

  • Consistently exceeding expectations through craftsmanship, quality, and service.

To create unforgettable customer experiences while making a meaningful, positive impact in the communities we serve.

Our Trusted Circle

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The People Behind OCGems

Desmond M Ratsoma

Co-Founder and Shareholder

I am a 40-year-old from Polokwane, South Africa, with over 15 years of experience in the diamond industry. Raised in a small village, I began working and running small businesses from a young age. After studying diamond cutting and polishing, I built a successful career, starting at Zurel Bros and earning qualifications from institutions like the GIA. I’ve trained over 350 students, including those with disabilities, and also hold a certificate in entrepreneurship. Today, I’m a qualified sign language instructor and an active member of the Young Diamantaires Group.

Robin S Bhebhe

Co-Founder and Shareholder

 

I am a 32-year-old from Bulawayo, Zimbabwe, with an entrepreneurial spirit that began at age 15 selling sandwiches at boarding school. I later moved into the cellphone business, becoming one of the first to import Blackberry phones. My journey in the diamond industry began when I was named Best Student Overall at the Kimberley International Diamond & Jewellery Academy in 2013. I went on to receive a full bursary from De Beers in 2014 and a scholarship from the Gemological Institute of America (GIA) in 2015 to study Gemmology, further advancing my expertise in the field.

 
 

Naledi R Mahakoe

Operations Assistant

Born and bred in Kimberley, Northern Cape. After matriculation in 2010, I pursued my passion for entrepreneurship and went on to build experience across various industries, including catering and financial services. My background in entrepreneurship, combined with hands-on experience in the catering industry and a wealth of knowledge in financial services, has given me a unique blend of skills that I carry into my professional journey. I am proud to be part of the Outclass Crystallized Gems team, where my dedication to exceptional service and client satisfaction shines through in every aspect of my work.

Shaneen S Calvert

Marketing Officer

Born and raised in the world-renowned diamond city of Kimberley, South Africa, I matriculated in 2019 and went on to study Graphic Design at the IIE Vega School in Bordeaux, Johannesburg. With a strong interest in graphics, computers, and social media, I completed my BA in Graphic Design after three years of dedicated study. Today, I have the privilege of working as the Marketer for Outclass Crystallized Gems (OCGems). I aim to further my skills by pursuing a certificate in digital marketing and look forward to contributing to showcasing diamonds in a new and engaging way in the digital world.

Kamogelo Mangena

Book-Keeper

I come from a small town called Jane Furse in Limpopo, South Africa. Although I initially planned to study Social Work, I found myself drawn to the accounting field and went on to pursue a Bachelor of Commerce at the University of Limpopo. During my studies, a mentor introduced me to the African Women Chartered Accountants (AWCA) student chapter, where I served as Vice-Chairperson in 2019. The role helped me grow through community outreach at high schools and engagement with industry professionals. Today, I proudly volunteer as the Treasurer of The Rooted Gem Foundation, the NPO of OCGems.

ADRICIA S MAKOBO

Polisher

I come from a small town called Jane Furse in Limpopo, South Africa. Although I initially planned to study Social Work, I found myself drawn to the accounting field and went on to pursue a Bachelor of Commerce at the University of Limpopo. During my studies, a mentor introduced me to the African Women Chartered Accountants (AWCA) student chapter, where I served as Vice-Chairperson in 2019. The role helped me grow through community outreach at high schools and engagement with industry professionals. Today, I proudly volunteer as the Treasurer of The Rooted Gem Foundation, the NPO of OCGems.

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