October birthstone

Gemstone Color Encyclopedia

What is Fire Opal? An explanation of the origin, meaning, and color combinations of this gemstone.

2026.05.07
Gemstone Color EncyclopediaOrange
Gemstone Color Encyclopedia

What is Rubellite Tourmaline? An explanation of the origin, meaning, and color combinations of this gemstone.

2026.05.05
Gemstone Color EncyclopediaRed
Gemstone Color Encyclopedia

What is Green Tourmaline? An explanation of the origin, meaning, and color combinations of this gemstone.

2026.04.29
Gemstone Color EncyclopediaGreen
Gemstone Color Encyclopedia

What is Precious Opal? An explanation of the origin and meaning of its gemstone colors and color combinations.

2026.04.22
MonotoneGemstone Color Encyclopedia