This is the 8079th most frequent Japanese word.
宝石
Gem; Jewel.
Here, '宝石' refers to a specific gemstone in a descriptive context.
その宝石はとても高価です。
That gem is very expensive.
In this sentence, '宝石' is used to refer to a meaningful or sentimental jewelry item.
私は祖母から大切な宝石を受け取りました。
I received a precious gemstone from my grandmother.
Here, '宝石' represents jewelry or gemstones in a commercial context.