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Insights & Guides

The Guru Diam Blog

Expert articles on lab-grown diamonds, wholesale sourcing strategies, and the latest trends shaping the jewelry industry.

Does Charlotte Have a Diamond District?
15 min read

Does Charlotte Have a Diamond District?

Charlotte has no dedicated diamond district — here's how the city's jewelry trade is actually organized, and how local jewelers source wholesale.

Australia's Diamond Mining Industry
15 min read

Australia's Diamond Mining Industry

How Australia diamond mining developed, the Argyle and Ellendale mines, why large-scale production ended, and where Australian diamonds fit today.

Lab-Grown Diamond Market Share
15 min read

Lab-Grown Diamond Market Share

How lab-grown diamond market share is measured, current unit vs. value splits, category-by-category adoption, and what the trend means for wholesale buyers.

E Color vs. F Color Diamond Compared
16 min read

E Color vs. F Color Diamond Compared

E color vs. F color diamonds compared on visible difference, price, and when the upgrade to E actually matters for wholesale buyers.

Asscher vs Radiant Cut Diamond Guide
15 min read

Asscher vs Radiant Cut Diamond Guide

Asscher vs radiant cut diamond compared: facet structure, clarity and color forgiveness, brilliance, sizing, and wholesale sourcing for jewelers.

Central African Republic Diamonds
15 min read

Central African Republic Diamonds

How Central African Republic diamond mining works, the Kimberley Process suspension and its aftermath, and what wholesale buyers should know about CAR-origin stones.

Jewelry Manufacturing Process Explained
16 min read

Jewelry Manufacturing Process Explained

How jewelry manufacturing actually works, from CAD and casting through stone setting, polishing, and QC — a wholesale buyer's process guide.

Does Memphis Have a Diamond District?
15 min read

Does Memphis Have a Diamond District?

Memphis has no dedicated diamond district — here's how the city's jewelry trade is actually organized, and how local jewelers source wholesale.