Tag
#certification
2 articles tagged certification.
GIA vs IGI vs GRS: Choosing the Right Lab for Your Stone
A practical comparison of GIA, IGI, and GRS gemstone certification for natural emerald — turnaround time, cost, origin testing, and which lab suits which purchase.
How to Buy an Emerald Online Without Getting Burned
A practical safety checklist for buying natural emeralds online — what to verify before you pay, which documents matter, and the red flags experienced buyers watch for.