C R E S T O N N E
The Crestonne Guide

The Complete Guide to
Ceylon Sapphires

A curated reference written from the ground up — by Naseef AR, founder of Crestonne, who sources directly from the dealer network in Ratnapura.

Every guide below is drawn from first-hand work with Sri Lankan miners, cutters, and lab graders. Read in order if you're new to Ceylon material, or jump to the topic that brought you here.

Section One

Understanding Ceylon Sapphires

Start here. The fundamentals — what makes a Ceylon sapphire, how to spot a real one, what heat treatment actually does, and how to read the lab report you receive with it.

Section Two

Buying & Pricing

What Ceylon material actually costs in 2026, how it compares to Kashmir and Burmese, and what to prioritise when choosing a stone for an engagement ring.

Section Three

Specialty Stones from Sri Lanka

Beyond blue sapphire — the rare and phenomenal stones the island is famous for, from padparadscha and star sapphire to chatoyant chrysoberyl, moonstone, and spinel.

Section Four

Sourcing & Ethics

How the gems actually come out of the ground in Ratnapura, and what 'ethically sourced' means in a country with a centuries-old artisanal mining tradition.

Sourcing Service

Ready for the stone itself?

If a guide above answered your question, the next step is the stone. Tell us what you're looking for and we'll source it direct from Ratnapura — colour, carat, cut, certification, the lot.

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