Reputable jewelry retailers will provide documentation, such as certificates of authenticity or grading reports from ...

(IDEX Online) - A cruise passenger claims she was duped after handing over $1,200 for a "half price" diamond ring, only to ...

Tessera Jewelry and the International Gemological ... Each Tessera piece now comes with an IGI certificate that guarantees: Authenticity and quality, adhering to global grading standards.