Diamond Certification

IGI Certification

Every lab grown diamond goes through an extensive process and certification through IGI (International Gemological Institute).

Tonozzi & Co. is committed to responsibly sourced, lab-grown diamonds. Every diamond we offer is guaranteed conflict-free, and crafted with care.

Just like the person who wears it, each diamond is entirely one of a kind. This individuality is captured in a microscopic inscription on every lab-grown diamond, creating a verifiable serial number unique to that stone.

With full transparency, our customers can trace each diamond’s origin and follow its documented journey. That means you can feel confident knowing the exact source of your diamond.