diamond

US /ˈdaɪ.ə.mənd/
UK /ˈdaɪ.ə.mənd/
"diamond" picture
1.

a precious stone consisting of a transparent and colorless crystalline form of carbon, used as a gemstone and in industry for cutting and abrasive tools.

:
•
She wore a beautiful diamond necklace.
•
Industrial diamonds are used for cutting hard materials.
:
gemjewelbrilliant
2.

a geometric shape with four equal sides forming two acute and two obtuse angles, resembling a rhombus.

:
•
The pattern on the fabric was made of small diamonds.
•
The baseball field is often called a diamond due to its shape.
:
rhombuslozenge
:
diamond in the rough