October’s birthstone is opal
Opal is six percent water and one hundred percent weather: green, orange, and blue moving across the dome depending on the hour. The most alive stone we set, and the most fragile.

- HARDNESS
- 5.5 to 6.5; pendants and earrings first
- THE COLOR
- Play-of-color: it changes as you move
- CARE
- Damp cloth only; never soak, never a hot car
The short answer
October’s birthstone is opal. Opal is six percent water and one hundred percent weather: green, orange, and blue moving across the dome depending on the hour. The most alive stone we set, and the most fragile. Works with opal at Made With Color today run from From $880; every stone ships with a passport naming origin, carat, and treatment plainly.
What is the October birthstone?
October’s birthstone is opal. Play-of-color: it changes as you move.
Is opal durable enough for daily wear?
5.5 to 6.5; pendants and earrings first.
What should I know before buying?
Damp cloth only; never soak, never a hot car. Every stone here is chosen loose, in daylight, and passported.
The Opal Studs
AUSTRALIAN OPAL · 18K
From $880
The Opal Halo
AUSTRALIAN OPAL · CABOCHON · 18K YELLOW · DIAMOND HALO
$1,640
The Opal Drops
AUSTRALIAN OPAL · CABOCHON · 18K YELLOW · BEZEL DROP
$1,460