Updated as of June 2026
Blue Topaz vs Topaz
| Blue Topaz | Topaz | |
|---|---|---|
| Price / carat | $10 to $150 | $10 to $400 |
| Hardness (Mohs) | 8 | 8 |
| Color | Blue, Sky blue, Deep blue | Blue, White, Yellow, Pink |
| Treatment | Irradiation and heat (nearly all stones) | Irradiation and heat (most blue topaz) |
The bottom line
Blue Topaz and 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 Blue Topaz and Topaz.
Frequently asked questions
Is Blue Topaz or Topaz more durable?
Both rate Mohs 8, so they are comparably durable.
Which is cheaper, Blue Topaz or Topaz?
Blue Topaz runs about $10 to $150 per carat and Topaz about $10 to $400 per carat, so Blue Topaz is usually the more affordable choice.
Which should I choose?
Pick Blue Topaz if you want blue tones and Topaz if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.