Expert Diamond & Jewelry Guides
The Journal
Honest guides on diamonds, engagement rings, lab-grown vs mined, care, and pricing. Written by the people who set the stones.
The 4 C’s of Diamonds Ranked: Which Matters Most
Cut, Color, Clarity, Carat. They’re not all equal. Here’s the honest ranking for a diamond that looks stunning without the premium.
What Does IGI Certified Mean? The Complete 2026 Guide
IGI is the world’s largest independent gemological laboratory, and the dominant grading authority for lab-grown diamonds. Here’s exactly what an IGI certification tells you, how it compares to GIA, and how to verify a report in 30 seconds.
Read ArticleIGI vs GIA vs GCAL: The Honest Diamond Lab Comparison (2026)
Three labs grade most of the world’s diamonds. Here is the real difference between IGI, GIA, and GCAL, and which one matters most for lab-grown vs mined.
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