gemstone
US /ˈdʒem.stoʊn/
UK /ˈdʒem.stoʊn/
名詞
1.
ジェムストーン
a precious or semiprecious stone, especially one cut, polished, and used in a piece of jewelry.
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ジェムストーン
a precious or semiprecious stone, especially one cut, polished, and used in a piece of jewelry.