World Gemological Services, INC. Competitors

At GIA, we believe every gem has a story — formed deep within the earth and revealed through science. For nearly 100 years, we’ve been bringing those stories to light through research, discovery and education. As a nonprofit, our mission is to ensure confidence in gems and jewelry by blending innovation, knowledge and science. From creating the 4Cs of diamond quality to inventing tools used worldwide, we make learning an adventure and turn discovery into truth. We don’t buy, sell or appraise gems. Instead, we provide trusted reports, education, and insights that help people — from industry professionals to everyday consumers — make informed decisions with clarity. This is GIA: where curiosity fuels innovation, knowledge builds confidence and science inspires a world of trust.

HRD Antwerp is Europe’s leading authority when it comes to Diamond Grading, Education, and Equipment. We strive for perfection, delivering the highest quality in all our products and services. HRD Antwerp draws on 570 years of experience passed down through Antwerp’s diamond trade. Our diamond lab has gained the industry’s confidence by offering highly reputable diamond and jewellery grading reports, state-of-the-art innovative solutions, and extensive in-house expertise. An HRD Antwerp grading report represents the hallmark of authentic European quality and allows any consumer to purchase diamonds or jewellery in full confidence.

Advanced Practice Education Associates, an ATI company, develops resources to help nurse practitioners develop and thrive. From student to novice to expert, APEA is your home for exam prep, certification success, and clinical and professional development.