
FOUNDER
Sadé Bianca Dubois
As the creative force behind this vision, I've established an atelier where meaning, beauty, and modern sensibility meet. I lead a dedicated team of expert designers and skilled artisans and collaborate with a close circle of trusted diamond cutters and workshops to bring each piece to life with precision and care. I am passionate about translating your story into heirlooms that celebrate you, your love and your life's precious moments.
My background spans shaping global luxury brands like Louis Vuitton and DKNY, where I developed an uncompromising eye for design, quality, and detail. Later, after training and working as a psychologist, I came to understand the real heart of beauty: Connection. Meaning. Intention.
This dual lens of luxury design and human truth shapes this atelier and defines everything we do. Every piece begins with a conversation. A moment. A story worth holding on to.
I split my time between Cape Town and London, two cities that live differently but teach me the same thing: that contrast is powerful. That wild beauty and refined elegance belong together. That a piece of jewellery can hold both strength and softness and say more than words ever could.

DIGITAL COMMUNICATIONS
Janke de Klerk
With a foundation in fashion and marketing, I blend thoughtful design with strategic insight, guiding you through a personalised, luxurious experience, whether you’re creating a custom ring or choosing the perfect heirloom. I carefully match your vision and budget, ensuring your journey feels as luxurious as the final creation, delivering unparalleled quality with a personal touch.
For me, it’s the people that matter most. I thrive on understanding your story, offering support like a friend, and celebrating the love behind each piece.
At the heart of it all, I believe jewellery should feel as personal as the love it represents. And I can’t wait to be part of your journey.
Beyond my work, I find joy in morning coffee, long runs, deep conversations, and my faith community, reminders of the connection and care that shape everything I do and the beauty of the stories we share.
Never Miss a Moment
Stories, Inspiration & Expert Advice
Our Atelier Journal
Our latest news, stories of connection, expert advice, and exclusive glimpses behind the scenes.

Flexible Payment Options Now Available with Float
We’re excited to announce a new way to shop at The One Diamond Atelier! With Float, you can now enjoy flexible, interest-free payment plans of up to 24 months, making it easier than ever to own the...
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Beyond the Ring: The Art of Bridal Jewellery
The Bespoke Bridal Jewellery Experience: Completing Your Dream Wedding Look. Your wedding day is a masterpiece—every detail thoughtfully chosen to reflect your love story, style, and vision. At T...
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Gerdus & Cecile’s Bespoke Engagement Ring Experience
When our client Gerdus set out to create the perfect engagement ring for Cecile, he envisioned something truly special, an elegant, timeless piece that reflected their love story. From hand-selecti...
Read moreDiamond Expertise
Learn About Diamonds

Lab-Grown or Natural Diamonds? The Latest in the Lab-Grown and Natural Diamond Debate
The debate between lab-grown and natural diamonds is ongoing, with new developments and consumer preferences continuing to shape the industry. While lab-grown diamonds are celebrated for their affo...
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Choosing the Perfect Diamond Shape
When it comes to selecting the perfect diamond, the shape is a crucial element that reflects personal style, enhances the diamond's brilliance, and complements the wearer's hand. With a myriad of d...
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The Symbolism and Meaning of the Different Diamond Shapes
Curious about what your diamond shape says about you? From the timeless round cut to the chic princess cut, each shape carries a unique symbolic meaning. Dive into the profound mes...
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