About Us
Quality Without Exception. Precision Without Compromise.
GemTrue is a global provider of professional diamond testing instruments, precision jewelry tools, and packaging solutions, trusted by jewelers, gemologists, and traders worldwide.
Our focus is simple: to deliver reliable, accurate tools designed for real-world professional use.
Who We Are
Founded in 2008 by Judy Zhu and Gary Peckham, GemTrue was established with a clear objective—to develop high-performance testing equipment for the diamond and jewelry industry.
Our foundation is built on manufacturing expertise dating back to 2007 through Shenzhen Dikai Industrial Co., Ltd. (Dikai Tools), where extensive experience in precision tool production continues to support our product development today.
From this strong technical background, GemTrue has grown into an independent global brand serving customers across multiple markets.
Our Journey
2007 — Manufacturing Foundation
Production capabilities established through Dikai Tools, building expertise in precision jewelry tools and testing instruments.
2008 — GemTrue Founded
Founded by Judy Zhu and Gary Peckham with a focus on professional diamond testing equipment.
2017 — Independent Brand
Transition to an independent brand, enabling greater flexibility and closer alignment with global customer needs.
Today — Trusted Worldwide
Serving professionals across global markets with reliable tools and consistent performance.
What We Do
We design and supply tools that support accurate gemstone identification and professional jewelry work.
Our product range includes:
- Diamond testers
- Synthetic diamond detection instruments
- Jewelry tools and accessories
- Gemstone and jewelry packaging solutions
Every product is developed with a focus on precision, usability, and consistency, ensuring dependable performance in daily professional environments.
Independently Verified Performance
Selected GemTrue products have been independently evaluated under the ASSURE program.
This third-party testing reinforces our commitment to transparency and reliable performance, providing professionals with additional confidence in the tools they use.
Why Professionals Choose GemTrue
- Precision-focused design for accurate results
- Manufacturing expertise established since 2007
- Selected products independently tested under ASSURE
- Designed for practical, real-world applications
- Trusted by professionals across global markets
Our Commitment
We are committed to delivering tools that professionals can rely on.
This means maintaining consistent quality standards, continuously improving product performance, and focusing on practical functionality rather than unnecessary complexity.
At GemTrue, we believe long-term trust is built through reliability, consistency, and honest performance.
Company Information
Registered Company Name: GemTrue Co., Ltd
Company Registration Number: 65915088
Registered Address: ROOM B 16/F Eubank Plaza 9 Chiu Lung Street, Central Hong Kong.
Email: sales@gemtrue.com