| HTML Entity (dec) | ◇ |
| HTML Entity (hex) | ◇ |
| UTF-8 (hex) | 0xe29787 / 0xe2 0x97 0x87 (3 bytes) |
| UTF-8 (dec) | 226, 151, 135 (3 bytes) |
| UTF-16-BE (hex) | 0x25c7 / 0x25 0xc7 (2 bytes) |
| UTF-16-BE (dec) | 37, 199 (2 bytes) |
| UTF-32-BE (hex) | 0x25c7 / 0x00 0x00 0x25 0xc7 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 37, 199 (4 bytes) |
| C/C++/Java source code | "\u25c7" |
| Python source code | "\u25c7" |