Treliss Worldwide is a leading manufacturer of loose diamonds and fine diamond jewelry based in New York City, with global networks in Hong Kong, Mumbai, Dubai, and Antwerp.

With 50 years of industry expertise and knowledge. Throughout the long history, we have expanded our assets and capabilities putting a constant emphasis on growth and adaptations. These resources, paired with our forward-thinking, enable us to perform in all sectors in and beyond the supply chain.

Treliss offers private label manufacturing for both retailers and designer brands, with the capabilities, resources, and intelligence necessary to ensure your company receives the highest quality products.

​We help build creative, consumer-based products and brands from start to finish, providing sourcing, manufacturing, jewelry design, importing and exporting, quality control, data-analytics, and marketing to a wide range of partners.

​​We focus on consumer dynamics and are committed to maintaining the highest standards of quality and social responsibility.

Treliss Worldwide is a proud member of the Responsible Jewelry Council.

Products & Collections

Gemstone Fashion

A collection that highlights luxury and design that blend aesthetics with captivating gemstones.

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Diamond Fashion

Mosaic Collection combines a meaningful mix of diamonds in different shapes and sizes creating a bold yet feminine statement.  

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Pearl Collection

We’ve re-imagined the classic pearls with a modern twist to make it fun and fashionable.

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Diamond Bridal Rings

Celebrate enduring love and commitment with our engagement rings and wedding bands. Distinctive in beauty and craftmanship for the discerning eye.  

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Men’s Collection

Modern hardware with an edge makes these statement pieces in black diamonds and our fire-silver both bold and masculine.

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Lab Grown Diamond Collection

Our lab grown diamond jewelry is steps above the rest. We offer unique shapes and sizes and create jewelry that is both exquisitely designed and aspirational.

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