Gem Education
Guides, buyer resources, and investment insights from our gemologists
The Complete Guide to Sapphires
Kashmir, Ceylon, Burma — learn how origin affects value, how to read a certificate, and what makes a sapphire truly exceptional.
Read Article →
Ruby: What is Pigeon Blood?
The most coveted colour in gems explained. How labs define it, why Burma commands a premium, and what heat treatment does to value.
Read Article →
Gemstones as Alternative Assets
Rare coloured stones have outperformed many asset classes over 20 years. A guide to building a gem investment portfolio.
Read Article →
Colombian vs. Zambian Emeralds
Two origins, two very different markets. How to distinguish them, what labs say, and which commands a premium.
Read Article →
Spinel: The Most Underrated Gemstone
For centuries confused with ruby, spinel is finally having its moment. Learn why cobalt and neon blue spinels are investment-grade.
Read Article →
Garnet: Beyond the Red Stone
Mandarin orange, mint green tsavorite, colour-change — garnet is far more diverse than most buyers realise.
Read Article →
Tanzanite: The One-Mine Wonder
Found only in a tiny area near Mt Kilimanjaro, tanzanite is one of the rarest gems on earth. Learn what drives its desirability and value.
Read Article →How to Read a GIA Certificate
GIA certificates contain a wealth of information — but what does it all mean? A plain-English guide to understanding every line.
Read Article →
Paraiba Tourmaline: The $50,000/ct Stone
Neon blue, electric, otherworldly. We explain why this rare tourmaline commands prices that rival top sapphires and rubies.
Read Article →
Unheated vs Heated: Does It Really Matter?
Heat treatment is standard in the gem trade, but unheated stones sell for multiples more. Here's the full picture on treatment and value.
Read Article →
The 4 Cs for Coloured Stones
Everyone knows the diamond 4 Cs, but coloured gemstones are graded differently. Learn what really matters when buying coloured stones.
Read Article →
Natural vs Lab-Grown: What Buyers Need to Know
Lab-grown gems look identical but cost a fraction. We break down the differences, value implications, and what to ask before you buy.
Read Article →
Alexandrite: The Chameleon Stone
Green by day, red by night. Alexandrite is one of the rarest colour-change gems in the world, and prices reflect it.
Read Article →
Gemstone Treatments Explained
Heating, filling, coating, irradiation — the gem world uses many treatments. Know what's standard, what's not, and how to ask.
Read Article →The 5 Rarest Gems Worth Owning
Painite, jadeite, alexandrite, paraiba, Kashmir sapphire — the rarest gems for serious collectors and long-term investors.
Read Article →
Kashmir Sapphire: Why It Commands a 10x Premium
Velvety blue, "cornflower" colour, from an exhausted mine. Why Kashmir sapphires remain the most coveted stones in the world.
Read Article →
Gemstone Shapes & Cuts Explained
Oval, cushion, pear, asscher, briolette — each cut has its own character and suits different stones. A beginner's visual guide.
Read Article →
Buying Gemstones Online: A Buyer's Checklist
Certificates, video, return policies, seller reputation — everything you should check before you buy a gemstone sight unseen.
Read Article →