Detailed Certification
Review the diamond’s grading, measurements, proportions, characteristics and supporting imagery before you choose.
Trusted by clients across Europe
GCAL by Sarine diamonds
Understand more before you choose.
Request a GCAL-certified diamond selected around your preferences and budget. Every stone is independently graded, then inspected by our gemologist in Sweden before dispatch.
- Independent GCAL grading
- Verified by our gemologist
- EU VAT included
Why GCAL
More than a grade on paper.
Two diamonds with the same carat, color and clarity can look very different. GCAL provides detailed grading and visual information to help you understand those differences, while Carateu helps you find the strongest balance of beauty, quality and value.
Grading You Can Trust
GCAL stands behind the accuracy of its carat, color, clarity and cut grading with a money-backed consumer guarantee.
Advanced Cut Analysis
GCAL 8X diamonds are assessed across eight areas of craftsmanship, proportions, light performance and optical precision.
Verified by Carateu
Every diamond is inspected by our gemologist in Sweden before it is approved and dispatched within the EU.
How it works
A more considered way to choose.
The best diamond is not simply the highest grade. It is the stone that offers the right balance of visible beauty, size, quality and value for the ring you are creating.
Share your preferences
Tell us your preferred shape, carat range, budget and any qualities that matter most to you.
We review the inventory
Our gemologist compares the grading, proportions, imagery and visible performance of the strongest available options.
Choose with confidence
Receive a considered shortlist with clear guidance, then choose only when you feel comfortable.
GCAL diamond sourcing
Request a GCAL-certified diamond.
GCAL diamonds are sourced by request. Tell us what you are looking for, and our gemologist will help find suitable options for your diamond, ring, or future jewelry piece.
GCAL-certified options We source suitable GCAL diamonds around your preferred shape, quality and budget.
Gemologist guidance We compare the grading, proportions and visual information of the strongest available options.
Verified in Sweden Your diamond is inspected by our gemologist before secure, insured dispatch within the EU.
Place a request
Tell us what you are looking for
Share your preferred shape, size, quality range and budget. We will reply with suitable GCAL-certified diamond options.
