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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.

Diamond Cluster Earrings: Sourcing Guide
16 min read

Diamond Cluster Earrings: Sourcing Guide

How jewelers source diamonds for cluster earring production — melee grouping, center-plus-halo builds, setting styles, and wholesale pricing.

Diamond Cluster Necklaces: Sourcing Guide
15 min read

Diamond Cluster Necklaces: Sourcing Guide

How jewelers source loose and melee diamonds for cluster necklace lines — construction types, stone grading standards, and wholesale pricing.

Diamond Consignment, Explained
15 min read

Diamond Consignment, Explained

How diamond consignment works in the wholesale trade — memo vs. consignment, terms, risk allocation, and what jewelers should ask before agreeing.

Diamond Crossover Rings: Sourcing Guide
15 min read

Diamond Crossover Rings: Sourcing Guide

How jewelers source diamonds for crossover ring designs — melee and accent stone sizing, setting engineering, and wholesale considerations.

Diamond Cross Pendants: A Sourcing Guide
14 min read

Diamond Cross Pendants: A Sourcing Guide

How jewelers source diamonds for cross pendant production — setting styles, sizing, chain pairing, seasonal demand, and wholesale pricing.

Diamond Cuff Bracelets: Sourcing Guide
16 min read

Diamond Cuff Bracelets: Sourcing Guide

How jewelers source diamonds for cuff bracelet production — open-back construction, sizing, stone placement, and wholesale pricing.

Diamond Cut Chart: Grades Explained
16 min read

Diamond Cut Chart: Grades Explained

How diamond cut grade charts work, what Excellent through Poor actually measure, and why cut matters more than most buyers realize.

Diamond Cut Grades Explained
15 min read

Diamond Cut Grades Explained

GIA diamond cut grades explained — Excellent to Poor, what drives each grade, and how to buy and price by cut grade wholesale.

Boston Diamond District Guide
15 min read

Boston Diamond District Guide

A buyer's guide to Boston's Jewelers Building diamond district in Downtown Crossing: history, layout, what's there, and wholesale sourcing tips.