Introducing the Guaranteed 4Cs Grading Certificate with Diamond Journey™
We’re proud to introduce the Guaranteed 4Cs Grading Certificate with Diamond Journey™ The first and only solution that combines a fully verified, data-backed origin story with GCAL’s guaranteed grading accuracy.
For years, GCAL has been the only lab to offer guaranteed grading. Now, we’re taking the next step: empowering retailers to not just sell a diamond, but to share its complete transformation — from rough crystal to polished gem — in a way that’s both visual and verifiable.
Powered by Sarine’s advanced scanning and imaging technology, the Diamond Journey™ documents every key stage of the diamond’s lifecycle, including:
- High-resolution scans of the rough diamond
- Planning data and cut decision visuals
- Progress images from rough to polish
- And of course, GCAL’s Guaranteed 4Cs Grading Certificate
All data is captured at the source and secured throughout the supply chain — giving you a story you can trust, and your customers can connect with.
For those looking to create an even more immersive experience, an optional 3D-printed replica of the original rough diamond is available. This physical model brings the diamond’s story to life and provides a unique way to engage clients at the counter.
Today’s buyers care about more than beauty — they want meaning, authenticity, and confidence. The Guaranteed 4Cs Certificate with Diamond Journey™ delivers all three.
If you’re ready to differentiate your offering, build stronger customer connections, and put natural diamonds back in the spotlight, GCAL by Sarine is here to help.
Want to experience the Diamond Journey™ for yourself?
Come see us at JCK, booth #15039. Email jck@gcalusa.com to secure an appointment.