16 min read
Centurion Jewelry Show: A Buyer's Guide
What the Centurion show is, how it differs from mega-shows like JCK, and how wholesale buyers should prepare to attend.
Insights & Guides
The Guru Diam Blog
Expert articles on lab-grown diamonds, wholesale sourcing strategies, and the latest trends shaping the jewelry industry.
17 min read
Certified Natural Diamonds: Buying Guide
What makes certified natural diamonds different from uncertified goods, how IGI, GIA, and GCAL compare, and how to evaluate a report before buying.
15 min read
Chameleon Diamonds: What They Are and Why They're Rare
What causes a chameleon diamond's color-change effect, how they're graded, why they're so rare, and what real alternatives exist in trade supply.
15 min read
Channel Setting Diamond: Full Guide
What a channel setting is, how it compares to pave and bar settings, pros and cons, durability, and what to know before ordering one.
16 min read
Clarity-Enhanced Diamonds: A Sourcing Guide
What clarity-enhanced diamonds are, how laser drilling and fracture filling work, disclosure rules, and what wholesale buyers should check.
16 min read
Cluster Setting Diamond: Full Guide
What a cluster setting is, how it differs from halo and illusion settings, pros and cons, and what to check before sourcing one.
17 min read
Colored Diamond Price Chart (2026)
A colored diamond price chart by color and intensity tier, plus what actually drives fancy color diamond pricing — hue, carat, clarity, and origin.
15 min read
Congo Diamond Mining: History and Trade Today
How diamond mining developed in the Democratic Republic of Congo, its Kimberley Process standing, and what it means for the modern diamond trade.
16 min read
Couture Las Vegas: A Buyer's Guide
What Couture Las Vegas is, how it differs from JCK Las Vegas, and how a wholesale trade buyer should prepare for the designer jewelry show.