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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 an Eye Clean Diamond?
19 min read

What Is an Eye Clean Diamond?

An eye clean diamond is a diamond with no inclusions or blemishes visible to the naked, unaided eye at a normal viewing distance — roughly 6 to 12 inches.

Yellow Diamonds: A Trade Buying Guide
16 min read

Yellow Diamonds: A Trade Buying Guide

A yellow diamond is a diamond whose crystal structure contains trace amounts of nitrogen, which absorbs blue light and gives the stone a yellow body color.

Men's Diamond Chains: Sourcing Guide
16 min read

Men's Diamond Chains: Sourcing Guide

A men's diamond chain is a neck chain — Cuban link, rope, figaro, box, or another traditional link style — set with diamonds along part or all of its length.

1 Carat Lab Grown Diamond Price Guide
15 min read

1 Carat Lab Grown Diamond Price Guide

A 1 carat lab-grown diamond typically prices well below its natural counterpart of comparable quality, with the exact figure driven by the same 4Cs

Affordable Lab-Grown Diamonds Guide
15 min read

Affordable Lab-Grown Diamonds Guide

An affordable lab-grown diamond is a CVD-grown, certified stone priced significantly below its natural equivalent because it skips mining costs entirely.

Diamond Appraisal: What It Is & When You Need One
15 min read

Diamond Appraisal: What It Is & When You Need One

A diamond appraisal is a professional assessment that assigns a monetary value to a diamond or a piece of diamond jewelry — typically for insurance, estate, resale, or divorce/legal purposes.

Hearts and Arrows Diamonds
16 min read

Hearts and Arrows Diamonds

Hearts and arrows refers to a symmetrical optical pattern visible in exceptionally well-cut round brilliant diamonds: eight identical arrow shapes visible

1 Carat Natural Diamond Price
15 min read

1 Carat Natural Diamond Price

A 1 carat natural diamond's price is driven primarily by the interaction of cut, color, clarity, and certification — not carat weight alone — and can...