Updated as of June 2026
Lab-Grown Diamond vs White Sapphire
| Lab-Grown Diamond | White Sapphire | |
|---|---|---|
| Price / carat | $400 to $3,000 | $40 to $600 |
| Hardness (Mohs) | 10 | 9 |
| Color | Colorless, Fancy colors | Colorless, White |
| Treatment | HPHT or CVD growth | Heat treatment (common) |
The bottom line
Lab-Grown Diamond and White 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 White Sapphire.
Frequently asked questions
Is Lab-Grown Diamond or White Sapphire more durable?
Lab-Grown Diamond is harder (Mohs 10 vs 9), so it resists scratches better.
Which is cheaper, Lab-Grown Diamond or White Sapphire?
Lab-Grown Diamond runs about $400 to $3,000 per carat and White Sapphire about $40 to $600 per carat, so White Sapphire is usually the more affordable choice.
Which should I choose?
Pick Lab-Grown Diamond if you want colorless tones and White Sapphire if you prefer colorless. Match the stone hardness to how you will wear it and let budget break the tie.