About Us
Supplying the Gems Behind Exceptional Jewelry
Crimson Gems is a Bangkok-based manufacturer specializing in precious-cut Emeralds, Rubies, and Sapphires — crafted for designers and jewelry manufacturers who demand consistency and quality. We deliver gemstones that elevate your jewelry. Every stone we cut is made to fit perfectly — supporting designers and manufacturers with reliable supply, tight tolerances, and transparent sourcing.
Our Story
Established in 1991, Built on Trust and Precious
Crimson Gems began its journey in 1991 with a focus on manufacturing high-quality emeralds for jewelry brands. What started as a specialty in emerald cutting has now grown into a trusted global supply source for Emeralds, Rubies, and Sapphires.
Decades of Expertise, Led by the Next Generation
With years of experience, industry knowledge, and strong sourcing partnerships, the business is now progressing under the next generation — combining traditional craftsmanship with modern technology and global standards.
Direct Sourcing for Consistent Quality
We procure emerald rough directly from trusted mining regions, ensuring transparency and control over color, clarity, and consistency right from the source.
For Rubies and Sapphires, we collaborate with reputable factories and cutting centers, maintaining precise specifications and reliable supply for jewelry production.
A Legacy of Craftsmanship, A Vision for Innovation
From our early beginnings to our expanding capabilities today, our promise remains the same — to deliver perfectly cut gemstones that support jewelry designers and manufacturers around the world.