precious stone 
noun
A highly attractive and valuable piece of mineral, used especially in jewellery; a gemstone: a dazzling inlay of precious stones...
- The range of geological subjects is wide: minerals, rocks, precious stones, and the means of working them.
- Traders in Livingstone have been urged to start dealing in gemstones to sell the precious stones to the many tourists who visit the tourist capital.
- Much of the jewellery is set with precious stones.
- Montgomeryshire
- Montgomery's tubercle
- month
- month clock
- month-long
- monthly
- monthly meeting
- monthly nurse
- monthly rose
- month name
- month's mind
- Montian
- monticellite
- Monticello
- monticle
- monticule
- monticuliporoid
- monticulus
- montigenous
- Montilla
- Montmartre
- montmartrite
- montmorillonite
- montmorillonite group
- montmorillonitic