钻石 (zuàn shí): diamond

He saved his salary for three whole years before he could buy a diamond ring and propose to his girlfriend on her birthday.

The most eye-catching item in the museum is that crown, which is studded with dozens of sparkling diamonds.

Geologists discovered a rare large diamond weighing 300 carats in volcanic rock, which caused a sensation in the mining industry.

Mom carefully kept the diamond earrings her grandmother had passed down to her in a jewelry box, planning to give them to me when I get married.

This jewelry store promises that every diamond it sells comes with an international certificate, guaranteeing that it is not synthetic.