ABOUT
I am Yuno Sugihara, a jewelry designer and gemologist based in Zurich, specializing in custom-made pieces that are both timeless and personal. My passion lies in creating jewelry that blends elegance with everyday wearability, using the highest quality materials while staying true to my values of sustainability and ethical craftsmanship.
Coming from a family deeply rooted in the lab-grown diamond industry, I work exclusively with certified, premium-quality lab-grown diamonds from our own production. Lab diamonds are a clear choice for the modern, environmentally conscious client—not only because they are significantly more affordable, but also because they offer the same brilliance and beauty without the environmental harm of traditional diamond mining. Beyond diamonds, I also source unique, handpicked gemstones from around the world, carefully curating stones that inspire one-of-a-kind creations.
I find inspiration in organic art, architecture, and my travels, constantly seeking new ideas that translate into modern, wearable designs. My personal style reflects my design philosophy—I believe in good basics that work for any occasion. A bold statement ring, classic lab diamond studs, and a masculine watch are my everyday essentials, effortlessly combining sophistication with practicality.
Sustainability is an important part of my work and lifestyle, though I believe in a balanced approach rather than striving for perfection. I am also deeply into wellness and healthy living, seeing it as an extension of my appreciation for quality, longevity, and thoughtful choices—whether in the jewelry I create, the way I live, or the products I choose. My goal is to design pieces that are not only beautiful but also responsible—meant to be cherished for a lifetime.
Let’s create something meaningful together.
Yours,
Yuno
Showroom:
Our showroom in the heart of Zurich is available by appointment, offering a private and personalized experience. For an appointment please contact me yuno@sugiharaco.com
B2B clients: for high-quality lab-grown diamonds please contact us at my primary business Sugihara & Co. GmbH. www.sugiharaco.com where we specialize with our family businesses in the production and supply of GIA- and IGI-certified CVD diamonds, grown and polished entirely in-house.
For inquiries or to schedule an appointment, please get in touch.
Our Diamonds
Our lab-grown diamonds are sustainably grown in our own laboratories and meticulously polished in our family’s factory. With complete control over the entire production process, we ensure exceptional quality, ethical sourcing, and precision craftsmanship in every diamond.
Each diamond is GIA or IGI certified, guaranteeing brilliance, durability, and transparency. By combining advanced technology with generations of expertise, we create diamonds that are not only beautiful but also responsibly made for the future of fine jewelry.
Our Gold
Sustainability is at the heart of our brand. All our jewelry is crafted using recycled gold, reducing environmental impact and ensuring that each piece carries a unique legacy. Our recycled gold is meticulously refined to meet the highest standards of quality and durability.
If you have any questions or need assistance, please don’t hesitate to reach out. We’re here to help you find jewelry that not only looks beautiful but also feels meaningful.
Warm regards,
Yuno Sugihara