Surat-based Hastmilap Pvt. Ltd., one of India’s leading integrated Jewellery manufacturers, has been granted a patent for its proprietary Prismix Cut Technique, an original diamond-cutting innovation. The patented technique is developed to redefine the visual performance of structured diamonds.

The technique is built on a principle that is simple in concept yet demanding in execution. Two baguette diamonds are precisely oriented in mirror-image opposition, facing each other across a central axis to create a unified form that is entirely new. While preserving the clean geometry and disciplined elegance of the classic step cut, this innovative configuration delivers a distinctly enhanced visual presence.

The technique treats both diamonds as active table-facing surfaces. Light entering the cut is received, refracted, and reflected from two directions simultaneously. Its 38 facets work not in isolation but in harmony, passing light across the mirror axis and amplifying brilliance throughout the combined form.

The result is a continuous, bilateral glow that captures light from multiple angles, holds it longer, and returns it with remarkable clarity, depth, and brilliance. The technique demonstrates how thoughtful design and precision engineering can transform the way a diamond performs.

Designed for applications across fine Jewellery, the technique is particularly suited for necklaces, bracelets, bangles, rings, earrings and other contemporary Jewellery where linear and geometric designs are celebrated. By combining visual brilliance with design versatility, the innovation opens new creative possibilities for Jewellery designers while offering consumers a distinctive diamond experience.

The innovation traces its origins to a bespoke client requirement where conventional baguette diamonds were unable to achieve the desired visual impact in a structured Jewellery design. Rather than modifying the Jewellery around the limitation, Vishal Dholiya questioned whether the diamond itself could be reimagined. Through continuous research, repeated trials, and careful observation, that pursuit evolved into the Prismix Cut, an innovation that reflects Hastmilap’s commitment to solving design challenges through original thinking.

Commenting on the achievement, Vishal Dholiya, Founder & Managing Director, Hastmilap Pvt. Ltd., said :

“The Prismix Cut began with a simple question, could we rethink the diamond instead of compromising on the design? That curiosity led us on a journey of exploration, and today, receiving a patent for the Prismix Cut Technique is a proud milestone for our entire team. This innovation represents our belief that craftsmanship should never stop evolving. I dedicate this achievement to the artisans of Surat, whose skill and dedication have shaped the global diamond industry for generations. It is my hope that the Prismix Cut will stand as a symbol of Indian innovation and inspire the industry to continue pushing the boundaries of what is possible.”

For decades, Surat has been recognized as the city that cuts and polishes the majority of the world’s diamonds. With the Prismix Cut Technique, Hastmilap seeks to add another dimension to that legacy, one where innovation originates alongside craftsmanship. The technique reinforces the company’s vision of contributing original intellectual property to the global Jewellery industry while showcasing India’s capability to lead not only in manufacturing excellence but also in product innovation. The technique represents a significant milestone not only for the company but also for Surat’s legacy as the world’s diamond capital.