CERTIFICATION
Knowledge Through Transparency.
Every exceptional diamond deserves independent verification. Kether Diamonds works exclusively with internationally recognized grading laboratories, ensuring complete transparency and confidence in every stone.
WHY CERTIFICATION MATTERS
Every diamond tells a story. Certification ensures that story is verified, documented and internationally recognized.
It provides buyers with confidence, clarity and trust — the foundation of every transaction at Kether Diamonds.
A certified diamond comes with a complete, independent analysis of its 4Cs: Cut, Color, Clarity and Carat weight, as assessed by world-leading gemological laboratories.
LEADING LABORATORIES
GIA
Gemological Institute of America
IGI
International Gemological Institute
HRD
Hoge Raad voor Diamant
UNDERSTANDING A DIAMOND REPORT
What the Report Includes
THE 4CS INSIDE THE REPORT
Cut
How the diamond is shaped and faceted for brilliance and fire.
Color
Graded from D (colorless) to Z, affecting rarity and value.
Clarity
Assessment of internal and external characteristics under magnification.
Carat
The precise weight measurement, directly linked to size and rarity.
CLARITY PLOT
Every grading report includes a clarity plot — a precise diagram mapping each inclusion and blemish on the diamond.
Kether Diamonds focuses exclusively on VS2 clarity and above — ensuring that all stones in our collection are eye-clean and of exceptional quality.
CERTIFICATION PROCESS
Selection
Carefully chosen rough or polished diamonds from trusted global sources.
Inspection
Expert gemologists examine every detail under precise conditions.
Grading
The 4Cs and characteristics are evaluated using standardized methods.
Certification
Issued by leading gemological laboratories with a unique report number.
Verification
Report number can be verified globally through laboratory online portals.
GLOBAL RECOGNITION
Recognized in the world’s leading diamond centers — New York, Antwerp, Ramat Gan, Dubai and beyond.
BUY WITH
CONFIDENCE.
Every diamond is verified, certified and sourced through trusted global partners. Your investment, fully protected.
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