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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.

Hatton Garden: London's Diamond District
15 min read

Hatton Garden: London's Diamond District

A buyer's guide to Hatton Garden, London's historic jewellery quarter: its history, the London Diamond Bourse, and how sourcing there works.

Catoca Diamond Mine: A Buyer's Guide
16 min read

Catoca Diamond Mine: A Buyer's Guide

What the Catoca diamond mine in Angola is, who operates it, its scale, and what wholesale buyers should know about its history and standing.

Wholesale Diamonds Atlanta: Buying Guide
15 min read

Wholesale Diamonds Atlanta: Buying Guide

How Atlanta-area jewelers and retailers buy wholesale diamonds, what a trade account requires, and when national suppliers beat local sourcing.

The Mumbai Diamond Market Explained
15 min read

The Mumbai Diamond Market Explained

How Mumbai's diamond trade works — the Bharat Diamond Bourse, Zaveri Bazaar, and how the city fits into India's global diamond industry.

The World's Top Diamond Export Countries
15 min read

The World's Top Diamond Export Countries

Which countries export the most diamonds — rough, polished, and lab-grown — and why the rankings look so different depending on the category.

Prong Setting vs. Bezel Setting
16 min read

Prong Setting vs. Bezel Setting

Prong vs. bezel setting compared on light exposure, durability, security, and cost for wholesale jewelry buyers and jewelers.