A source-led gemstone encyclopedia

Discover the extraordinary world of gemstones.

Explore the science, origins, chemistry, colors, treatments, value factors, and human stories behind the world’s gems.

Begin with RubySapphireEmeraldDiamond

Editorial visual · not a documented specimen

20Gemstones documented
11Mineral species
0Countries & localities
4Published references
1Rights-tracked images

The directory

Every gem, placed in context.

Move from visual discovery to precise mineralogy. Each reviewed profile separates measured properties, editorial interpretation, cultural tradition, and market context.

Explore the complete gemstone directory

Explore by color

Color is a clue, not an identification.

Begin visually, then use mineral and optical properties to narrow the possibilities.

Red Orange Yellow Green Blue Purple Pink Colorless

Measure & compare

Hardness is scratch resistance—not toughness.

The Mohs scale compares which minerals can scratch others. It does not predict whether a gem will chip, cleave, or survive impact.

Browse gems around Mohs 8
  1. 1Explore
  2. 2Explore
  3. 3Explore
  4. 4Explore
  5. 5Explore
  6. 6Explore
  7. 7Quartz
  8. 8Topaz
  9. 9Corundum
  10. 10Diamond

Editorial standard

Built to show what is known—and what still needs review.

01

Field-level sourcing

Measured values and consequential claims connect to their supporting references.

02

Named accountability

Profiles expose author, reviewer, revision date, and corrections pathways.

03

Clear boundaries

Science, market commentary, history, and folklore remain visibly distinct.