How to Spot an Ethical Diamond: Powerful Certifications You Need in 2025 Shoppers increasingly want ethical diamonds, unaware of the fact that “ethical” isn’t a single stamp. Some documents verify a stone’s quality, others trace origin, and a few audit environmental and social claims. When looking for an ethical diamond, the key is knowing which certifications signal what, and how to verify them before you buy. Below is a straightforward, trust-first guide to the paperwork that matters, and how buyers