1. Credentials matter more than the showroom
A polished window display tells you nothing about the diamond inside the box. The questions that actually matter:
Are the diamonds GIA or IGI certified? These are the only two grading laboratories the trade trusts. Anything else (EGL, IGL, in-house) inflates grades and obscures value.
Are the watches authenticated in writing? A reputable dealer issues written confirmation of the inspection where offered covering authenticity and condition.

