What is the best way to inspect a Thailand Blue Sapphire before purchase?

[GemPdt]

Inspecting a Thailand Blue Sapphire before purchase involves a meticulous evaluation of its certification, verifying authenticity through reputable gemological reports like GIA or AGS. Assessing color involves observing under various lighting conditions for a rich, evenly distributed blue hue. Checking clarity ensures minimal visible inclusions that impact brilliance. Evaluating cut quality ensures proper proportions and symmetry for optimal light reflection. Confirming carat weight aligns with size preferences and budget. Understanding any treatments like heat treatments affects appearance and value. Choosing a trusted seller with a transparent return policy and warranty assures confidence in the purchase's quality and authenticity.