Code point
U+22C4
Glyph appearance depends on your fonts.
U+22C4
SmU+22C4 DIAMOND OPERATOR is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Mathematical Operators block.
Choose the representation you need, then copy its value.
U+22C4
8900
⋄
⋄
⋄
E2 8B 84
22C4
000022C4
%E2%8B%84
\u22C4
\u22C4
\u22C4
\22C4