What is a gem? And why painite from Myanmar can fetch US$60,000 per carat

What makes a stone a gem? It boils down to a few key qualities: beauty and durability. But opal, the national gemstone of Australia, is an anomaly - it’s soft.

These are 7 of the world's rarest gemstones

10 of the most expensive and coveted gemstones in the world

More than just a sparkling gem: what you didn't know about diamonds

More than just a sparkling gem: what you didn't know about diamonds

Painite Ring For Sale 2024

What is a gem? And why painite from Myanmar can fetch US$60,000 per carat

Top 3 things to know about buying a Painite gemstone, the rarest gem in the world

What is a gem? And why painite from Myanmar can fetch US$60,000 per carat

Sapphire secrets: they aren't all blue, and mining them requires luck plus labour