As character names:

U+22C4 DIAMOND OPERATOR character (⋄)

As raw characters:

⋄

As a string of HTML entities:

⋄

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 139, hex 0x8B, octal \213, binary 10001011
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 132, hex 0x84, octal \204, binary 10000100
This is continuation byte 2, expecting 0 more.

U+22C4	DIAMOND OPERATOR
	x (white diamond - 25C7)
	x (black small diamond - 2B29)