16 min read
South Africa Diamond Mining Explained
How South Africa's diamond mines built the modern diamond trade, its major producers today, and what it means for wholesale sourcing.
Insights & Guides
The Guru Diam Blog
Expert articles on lab-grown diamonds, wholesale sourcing strategies, and the latest trends shaping the jewelry industry.
19 min read
Split Shank Rings: Wholesale Guide
How independent jewelers source, price, and stock split shank diamond ring settings — construction types, stone compatibility, and margins.
15 min read
Step Cut Diamonds: A Buyer's Guide
What a step cut diamond is, which shapes qualify, how step cuts differ from brilliant cuts, and how to source them wholesale.
15 min read
What Is a Super Ideal Cut Diamond?
What a super ideal cut diamond is, how it differs from standard Ideal or Excellent cut, hearts and arrows grading, and whether it's worth the premium.
15 min read
Sustainable Diamonds: What the Term Actually Covers
A guide to diamond sustainability beyond conflict-free status: environmental footprint, recycled materials, certifications, and greenwashing risks.
15 min read
Swiss Cut Diamond: A Trade Glossary Guide
What a Swiss cut diamond is, how its facet count compares to single cut and full cut melee, and where it's used in jewelry production.
15 min read
Tension Setting Rings: A Complete Guide
How tension setting rings work, which metals and diamond shapes suit them, durability tradeoffs, and cost — a wholesale sourcing guide.
20 min read
Three Stone Setting: Complete Guide
What a three stone setting is, how side stones are built and paired, metal and durability notes, and what to check before ordering one.
15 min read
The Tiffany Setting: A Complete Guide
What a Tiffany setting is, how it compares to cathedral and prong settings, and what jewelers should know when sourcing this style.