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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.

What Is a Diamond Price Index?
16 min read

What Is a Diamond Price Index?

How diamond price indices work, what they track for natural and lab-grown diamonds, and how wholesale buyers actually use them to benchmark pricing.

Diamond Price Per Carat Chart
17 min read

Diamond Price Per Carat Chart

A diamond price per carat chart for reading lab-grown and natural quotes: carat tiers, color/clarity tiers, and how to use one at wholesale.

Diamond Price Per Gram, Explained
15 min read

Diamond Price Per Gram, Explained

Why diamonds aren't priced per gram like gold, how to convert carat price to a gram-equivalent figure, and what actually drives diamond cost.

Diamond Price Trends Explained
16 min read

Diamond Price Trends Explained

How natural and lab-grown diamond prices have actually moved, why, and what the trend means for wholesale stocking and pricing strategy.

What Makes a Diamond Rare?
17 min read

What Makes a Diamond Rare?

Diamond rarity explained: how carat weight, color, clarity, and cut each drive genuine rarity, how certification documents it, and how the word gets misused.

Diamond Scintillation Explained
15 min read

Diamond Scintillation Explained

What diamond scintillation actually means, how it differs from brilliance and fire, what affects it, and how to evaluate it before buying.

Diamond Stud Earrings: A Sourcing Guide
15 min read

Diamond Stud Earrings: A Sourcing Guide

How jewelers source matched diamond pairs for stud earring production — matching standards, mm-to-carat sizing, setting styles, and wholesale pricing.