Tag

heat-treatment

7 articles

Specialty Stones·July 18, 2026·7 min read

Green Sapphire: Ceylon's Underrated Color Grade

Natural green Ceylon sapphire runs from forest to mint, colored by iron rather than the usual chromium and titanium. Here is how to read the tone and spot a stone that stays alive under any light.

Specialty Stones·July 8, 2026·7 min read

White Sapphire: The Colorless Ceylon Alternative

Natural white sapphire is a colorless Ceylon stone that reads as a durable, honest alternative to diamond and moissanite. This guide covers how it compares, what treatment means, and what to expect from rough to cut.

Understanding·July 6, 2026·7 min read

Natural Blue Sapphire vs Imitations & Treatments

A dealer's checklist for separating a genuine natural blue sapphire from synthetics, diffusion-treated stones, and glass-filled composites, and knowing what "natural" should actually guarantee at your price point.

Buying Guides·July 5, 2026·7 min read

Blue Sapphire Price: What Drives the Cost (2026)

What a blue sapphire actually costs comes down to five factors that compound each other. This is a realistic breakdown of the ranges and the reasons behind them.

Buying Guides·July 4, 2026·8 min read

Buying a Blue Sapphire Gemstone: What to Look For

A practical, spec-first guide to buying a natural blue sapphire: the five things that actually move the price, and how to read them before you commit.

Understanding·July 4, 2026·9 min read

Blue Sapphire: The Complete Ceylon Guide (2026)

Blue sapphire is corundum coloured by trace iron and titanium, and Ceylon origin defines the benchmark blue. Here's how colour, clarity and origin actually shape what a stone is worth.

Understanding·March 7, 2026·10 min read

Unheated vs Heat-Treated Sapphire: Real Difference (2026)

Heat treatment is the single biggest price lever in the sapphire market. Here is exactly what it does to the stone, and when paying the unheated premium is worth it.

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