noun
A precious or semi-precious stone, especially when cut and polished for use in jewelry.
彼女は誕生日にジェムストーンの指輪をもらった。
She received a gemstone ring for her birthday.
ほうせき is the native Japanese word for 'gem' or 'jewel', more common in everyday speech. ジェムストーン is a loanword often used in fashion, branding, or when emphasizing the English nuance.
Loanword from English 'gemstone'.