Gemstone Journal

Gemstone knowledge from the source: sourcing insights, care guides, and buying advice to help you choose jewelry and stones with confidence.

Morganite gemstones from the Sapphire Row morganite collection
Gem Guides
Sapphire Row

Morganite Gemstone: A Buyer's Guide to Color and Care

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Gemstone Treatments Explained: heated blue sapphire, oiled green emerald, untreated Malaya garnet and unheated blue sapphire in a grid Treatments and Labs
Sapphire Row

Gemstone Treatments Explained: What's Normal and What's Not

Which gemstone treatments are routine, which change a stone's value, and how to read treatment on a lab report before you buy.

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Gemstone Certification: lab reports for a Paraiba tourmaline, a ruby, an emerald and a peridot fanned out under the title Treatments and Labs
Sapphire Row

Gemstone Certification: How to Read a Gem Lab Report

How to read a gem lab report line by line: identity, treatment and origin, which labs the trade relies on, and the red flags.

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Heated vs. Unheated Sapphires: heated blue sapphire and unheated blue sapphire side by side Treatments and Labs
Sapphire Row

Heated vs. Unheated Sapphires: What Treatment Really Means for Value

What heat does inside a sapphire, why most are heated, why unheated stones cost more, and how to read treatment on a report.

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Lab-Grown vs. Natural Colored Gemstones: blue sapphire and blue sapphire side by side Buying Basics
Sapphire Row

Lab-Grown vs. Natural Colored Gemstones: Value, Beauty, and Authenticity

How lab-grown and natural colored gemstones differ in origin, rarity and value, and how to decide which one is right for you.

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