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| Name | Black Diamond |
| Category | Pseudo |
| Block | Boxes |
| Unicode | U+2756 |
| HTML Code | ❖ |
| CSS | \2756 |
| C & C++ | \U0002756 |
| PHP | \u{2756} |
| URL Encoding | %E2%9D%96 |
| UTF-8 | 11100010 10011101 10010110 |
| UTF-16BE | 00100111 01010110 |
| UTF-16LE | 01010110 00100111 |
| UTF-32BE | 00100111 01010110 |
| UTF-32LE | 01010110 00100111 00000000 00000000 |