Updated as of June 2026
Celestite vs Blue Topaz
| Celestite | Blue Topaz | |
|---|---|---|
| Price / carat | $5 to $60 | $10 to $150 |
| Hardness (Mohs) | 3.25 | 8 |
| Color | Blue, Pale blue, White, Colorless | Blue, Sky blue, Deep blue |
| Treatment | Typically untreated | Irradiation and heat (nearly all stones) |
The bottom line
Celestite and Blue Topaz both make beautiful jewelry. Choose by the look you want first, then weigh hardness against how hard you will wear the piece, and let price settle close calls. Read the full guides for Celestite and Blue Topaz.
Frequently asked questions
Is Celestite or Blue Topaz more durable?
Blue Topaz is harder (Mohs 8 vs 3.25), so it resists scratches better.
Which is cheaper, Celestite or Blue Topaz?
Celestite runs about $5 to $60 per carat and Blue Topaz about $10 to $150 per carat, so Celestite is usually the more affordable choice.
Which should I choose?
Pick Celestite if you want blue tones and Blue Topaz if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.