AltGems
Updated as of June 2026

Sphene vs Demantoid Garnet

SpheneDemantoid Garnet
Price / carat$20 to $300$200 to $3,000
Hardness (Mohs)5.256.75
ColorGreen, Yellow, Orange, BrownGreen, Yellow-green
TreatmentTypically untreatedHeat treatment (some stones)
See both side by side
Compare Sphene and Demantoid Garnet prices
Shop now

The bottom line

Sphene and Demantoid Garnet 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 Sphene and Demantoid Garnet.

Frequently asked questions

Is Sphene or Demantoid Garnet more durable?
Demantoid Garnet is harder (Mohs 6.75 vs 5.25), so it resists scratches better.
Which is cheaper, Sphene or Demantoid Garnet?
Sphene runs about $20 to $300 per carat and Demantoid Garnet about $200 to $3,000 per carat, so Sphene is usually the more affordable choice.
Which should I choose?
Pick Sphene if you want green tones and Demantoid Garnet if you prefer green. Match the stone hardness to how you will wear it and let budget break the tie.