Opal journal

How to read an opal

Every stone at Ecliptic Opals ships with its full specs — no guesswork. Here's what those terms actually mean.

Body tone is how dark or light the opal's background is, graded N1 (darkest) to N9 (lightest). Brightness measures how strongly the play-of-colour reads, from 1 (softest) to 5 (most vivid). Pattern describes the shape colour takes across the stone's face.