Grand Rainbow International Limited (Patent owner)

Setdiamonde Company Limited

Gemarosa Company Limited

Discover the Technology Advantage

Revolutionizing Jewelry Manufacturing with Patented Diamond Setting

Experience a new standard in diamond setting—engineered for security, speed, and global reliability. Our patented technology empowers manufacturers and retailers to achieve exceptional results with every piece, driving value across your entire jewelry line.

Unmatched Diamond Security

Our patented process ensures every diamond is set with exceptional stability, significantly reducing the risk of loss or loosening over time.

✓ Reduces post-sale repairs

✓ Enhances customer trust

✓ Ideal for high-value pieces

Accelerated Manufacturing Speed

Streamline your production with a setting technology designed to reduce time and labor, enabling faster market delivery without compromising quality.

✓ Shorter lead times

✓ Increased output

✓ Consistent precision

Significant Cost Savings

Lower your operational costs with a process that minimizes waste, reduces labor requirements, and maximizes material efficiency.

✓ Lower direct labor costs

✓ Reduced material waste

✓ Improved profitability

Comprehensive Warranty Coverage

Benefit from a warranty-backed setting solution that offers peace of mind for both manufacturers and end customers, ensuring long-term value.

✓ After-sales support

✓ Reduced liability

✓ Stronger customer relationships

Global Scalability

Our technology is engineered for seamless integration into operations of any size, from boutique ateliers to international production facilities.

✓ Easily adaptable

✓ Supports expansion

✓ Consistent results worldwide

Our Services

Innovative Diamond Setting Solutions


Gallery of Innovation & Craftsmanship

Explore our patented diamond setting technology, precision manufacturing processes, and finished jewelry pieces that redefine industry standards.

Who we are?

Trusted by Leading Manufacturers and Retailers Worldwide


This patented diamond setting technology has transformed our manufacturing process. It’s secure, efficient, and has noticeably reduced our production costs without compromising quality.

Peter Janai, Founder & Chairman

Implementing this innovative setting method gave our retail chain a competitive edge. The warranty-backed reliability and speed of installation exceeded our expectations.

Elizabeth, Managing Director

As a global distributor, we value technology that delivers consistency and security. The results speak for themselves—fewer returns, faster turnaround, and satisfied clients.

Cynthia , International Distribution Lead

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Experience the Future of Diamond Setting

Discover how our patented diamond setting process can transform your jewelry manufacturing operations. Enhance security, reduce costs, and ensure quality with technology trusted by leading global brands. Request a demonstration or connect with our team to learn more about our warranty-backed solutions.