15 min read
Letšeng Diamond Mine: A Buyer's Guide
How Lesotho's Letšeng mine, the world's highest-elevation diamond mine, produces some of the largest and rarest stones ever recovered.
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
Wholesale Diamonds in Dallas: A Buying Guide
How independent Dallas-area jewelers actually source wholesale diamonds — trade accounts, pricing, verification, and national supplier options.
16 min read
Underground Diamond Mining Explained
How underground diamond mining works, the shaft and caving methods used, why mines switch from open-pit, and what it means for natural diamond supply.
15 min read
Alrosa Diamond Mining: Company Guide
How Alrosa, Russia's state-controlled diamond miner, operates its Siberian mines, its global market share, and what it means for wholesale sourcing.
16 min read
Diamond Recutting: A Complete Guide
Diamond recutting explained: why stones get recut, the carat-weight tradeoff, recertification requirements, and when it's worth doing.
15 min read
Brazil Diamond Mining: History & Today
How Brazil's 18th-century diamond rush shaped Minas Gerais, why alluvial mining declined, and what Brazil's diamond industry looks like today.
15 min read
The Dubai Diamond Exchange: A Trade Guide
What the Dubai Diamond Exchange is, how it fits into global diamond trade, and what wholesale buyers should know about sourcing through it.
15 min read
Zimbabwe Diamond Mining: A Wholesale Buyer's Overview
Zimbabwe's diamond mining industry — the Marange fields, ZCDC, the Kimberley Process controversy, and where the sector stands today.
15 min read
How to Design a Custom Engagement Ring
The custom engagement ring design process step by step: budget, stone, setting, metal, CAD approval, and what jewelers should know before starting.