Compare GIA and IGI Certified Lab-Grown and Natural Diamond Retailers

Compare GIA and IGI Certified Lab-Grown and Natural Diamond Retailers

Choosing between GIA- and IGI-certified retailers comes down to verifiable grading, high-quality inspection tools, clear policies, and total-cost transparency. For both lab-grown and natural diamonds, start by confirming a third-party diamond grading report, checking the report number online, and reviewing 360° imagery before you buy. GIA is widely regarded as stricter on color, clarity, and cut, which can support resale confidence—especially for natural diamonds—while IGI is broadly adopted (particularly for lab-grown) with strong availability and competitive prices. Use Jewelry Guidebook’s checklists, table templates, and retailer-type guidance below to compare trusted diamond sellers efficiently and reduce risk.