17 min read
47th Street Diamond District Guide
A buyer's guide to the 47th Street Diamond District in NYC: history, layout, how trading works, and tips for sourcing wholesale diamonds.
Insights & Guides
The Guru Diam Blog
Expert articles on lab-grown diamonds, wholesale sourcing strategies, and the latest trends shaping the jewelry industry.
15 min read
AGS Conclave: A Wholesale Buyer's Guide
What AGS Conclave is, who attends, and how wholesale diamond buyers can use it for education, compliance, and trade networking.
15 min read
AGS Diamond Grading, Explained
What AGS diamond grading is, how its cut-grade system works, and how it compares to GIA, IGI, and GCAL for trade buyers.
15 min read
What Is the American Gem Society?
What the American Gem Society is, how it differs from AGS Laboratories, its membership tiers, and what it means for jewelers and diamond buyers.
15 min read
Antwerp Diamond District Guide
A buyer's guide to the Antwerp diamond district: its history as a global trade hub, how it works today, and how it compares to NYC and LA.
15 min read
Average Engagement Ring Carat Size Guide
What carat weights jewelers should stock as engagement ring center stones — regional and demographic patterns, and inventory planning by carat tier.
15 min read
Bar Setting Ring: Full Guide
What a bar setting is, how it compares to channel and pave settings, pros and cons, durability, and what to know before ordering one.
14 min read
Best Antique-Cut Lab-Grown Diamond Suppliers
A trade buyer's comparison of wholesale lab-grown diamond suppliers with antique and fancy shape ranges — evaluation criteria, and where each supplier fits.
16 min read
Best Certified Lab-Grown Diamond Wholesalers
A trade buyer's comparison of wholesale lab-grown diamond suppliers offering IGI, GIA, and GCAL certification.