Updated as of June 2026
Lab-Grown Diamond vs Sapphire
| Lab-Grown Diamond | Sapphire | |
|---|---|---|
| Price / carat | $400 to $3,000 | $50 to $2,000 |
| Hardness (Mohs) | 10 | 9 |
| Color | Colorless, Fancy colors | Blue, Pink, Yellow, White, Padparadscha |
| Treatment | HPHT or CVD growth | Heat treatment |
The bottom line
Lab-Grown Diamond and Sapphire 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 Lab-Grown Diamond and Sapphire.
Frequently asked questions
Is Lab-Grown Diamond or Sapphire more durable?
Lab-Grown Diamond is harder (Mohs 10 vs 9), so it resists scratches better.
Which is cheaper, Lab-Grown Diamond or Sapphire?
Lab-Grown Diamond runs about $400 to $3,000 per carat and Sapphire about $50 to $2,000 per carat, so Sapphire is usually the more affordable choice.
Which should I choose?
Pick Lab-Grown Diamond if you want colorless tones and Sapphire if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.