soft
23 gemstones in this durability range.
Browse rangeDurability index
Gemstone Hardness Categories
Compare Mohs ranges to support gemstone identification, care planning, and setting decisions.
medium
65 gemstones in this durability range.
Browse rangehard
141 gemstones in this durability range.
Browse rangevery hard
21 gemstones in this durability range.
Browse rangeHardness Guide FAQ
How should I use hardness for gemstone identification?
Use hardness as one of several signals. Combine it with colour behaviour, transparency, and crystal system for stronger candidate matching.
Does a higher Mohs number always mean better gemstone quality?
No. Hardness indicates scratch resistance, not overall quality. Evaluate appearance, stability, and intended use together.
Further Reading
For hardness standards and property context, see Gem-A and IGI educational resources.