Your diamond's certification is more than a document
It's our promise that every Kojo piece meets the highest standards of quality and authenticity.
Lab Diamond Certifications
A diamond certification is your guarantee of authenticity and quality. Think of it as your diamond's passport—a detailed analysis conducted by expert gemologists using precision instruments to assess every aspect that makes your stone unique. This comprehensive document provides an unbiased evaluation of your diamond's characteristics, ensuring complete transparency and confidence in your investment.
At Kojo, we believe trust begins with transparency. Independent certification from reputable laboratories ensures you know exactly what you're receiving. It allows you to compare diamonds with confidence, understanding their precise qualities and value. The diamond industry recognizes IGI certifications for their accuracy, reliability, and consistency—qualities that align perfectly with Kojo's commitment to excellence.
IGI (International Gemological Institute) is the world's leading authority on lab-grown diamond certification. As the most trusted name in the industry, IGI provides specialized grading for lab-created diamonds, ensuring consistency and precision in every evaluation. When you choose a Kojo piece, you're backed by the industry's gold standard in certification.
Your IGI certification provides a complete profile of your diamond:
- Carat weight - Precise measurement of your stone
- Cut grade - Assessment of brilliance and craftsmanship
- Color grade - Evaluation of color purity
- Clarity grade - Analysis of internal characteristics
- Polish and symmetry - Quality of finishing
- Detailed measurements - Exact dimensions and proportions
- Fluorescence characteristics - Natural light reactions
- Unique plotting diagram - Your diamond's distinctive fingerprint
Each certificate includes a laser-inscribed report number on your diamond's girdle, easily verified with a magnification loupe for added security.
Every Kojo diamond 1 carat and above comes with full IGI certification, ensuring authenticity and value. We recommend certified pieces because they provide the peace of mind that comes with knowing exactly what makes your diamond extraordinary.
Certification isn't just documentation—it's your confidence in choosing something truly exceptional. IGI certification represents the most trusted third-party verification in the industry, giving you complete assurance in the beauty and value of your Kojo piece.