Large-carat CVD Rough Stones
Stable production of large-carat lab-grown colored diamond rough stones via core CVD technology.
Allied Strengths · Shared Brilliance
Powerful Alliance · Splendid Coexistence
Upin New Materials focuses on core CVD technology to stably produce high-quality, large-carat colored diamonds — breaking the scarcity shackles of natural colored diamonds and redefining what a colored diamond can be.
CVD · VS+ Clarity · Full SpectrumAntwerp · Since 1982
5+
Color spectrum
VS+
Clarity grade
3
Generations of artisans
1982
Heritage since
Core Products
Two pillars: large-carat colored diamond rough stones, and one-on-one private customization.
Full-color Customization
A full spectrum of colors — pink, blue, green, red and yellow — with rich, uniform hue and outstanding saturation.
VS+ Clarity
Clarity up to VS grade and above, paired with one-stop crafting of high-end finished jewelry.
High-end Private Customization
Tailored design for large-carat colored diamond center stones — one-on-one luxury customization to engrave your exclusive splendor.
Silvius Druon · Founded 1982
A centennial diamond family from Antwerp, Belgium. Originated in Antwerp, the global heart of diamonds, Silvius Druon carries three generations of family artisan heritage and creates high-end lab-grown diamond jewelry to century-old craftsmanship standards.
- Originated in Antwerp, the global heart of diamonds
- Three generations of family artisan heritage
- Brand collections permanently exhibited at the DIVA Diamond Museum Antwerp
Vision
Forging through technology, crafting with ingenuity.
Let rare colored diamonds light up a wonderful life — a short look at the technology, heritage and craftsmanship behind every stone.
Core Brand Advantages
Sustainable luxury, freed from natural scarcity.
No mining, low-carbon
No raw material mining — a low-carbon, eco-friendly practice of sustainable luxury jewelry.
Full-spectrum customization
Pink, blue, green, red, yellow — full-spectrum colored diamonds available for exclusive customization.
Free from natural limits
Free from the scarcity and high-price limitations of natural colored diamonds.
Centennial craftsmanship
Three generations of Antwerp artisanship from Silvius Druon, applied to every finished piece.
Brand Highlights
From CVD reactors in the lab to centennial craftsmanship in Antwerp.
Alliance
Upin × Silvius Druon — Allied Strengths · Shared Brilliance
Spectrum
Full-spectrum CVD colored diamonds: pink, blue, green, red, yellow
Heritage
Silvius Druon collections at the DIVA Diamond Museum Antwerp
Engrave your exclusive splendor.
One-on-one luxury customization for large-carat colored diamond center stones — tell us the color, the carat, and the story you want to tell.
Talk to us
- Cynthia Youcynthiayou@upin.email+86 18012820671
- Mary Xuxutianyun@upin.email+86 19955674480
Headquarters
1F, Workshop No.1, Hi-Tech Industrial Park, Wanjiang Avenue, Yingjiang District, Anqing City, Anhui Province, China