diff --git a/solutions/go/diamond/1/diamond.go b/solutions/go/diamond/1/diamond.go
new file mode 100644
index 0000000..715fb4a
--- /dev/null
+++ b/solutions/go/diamond/1/diamond.go
@@ -0,0 +1,34 @@
+package diamond
+
+import "strings"
+
+func Gen(char byte) (string, error) {
+	if char == 'A' {
+		return "A", nil
+	}
+
+	spaces := int(char - 'A')
+	lines := make([]string, spaces)
+	for i := 0; i <= spaces; i++ {
+		var line strings.Builder
+		line.WriteString(strings.Repeat(string(char), spaces-i))
+		line.WriteByte(char)
+
+		if i > 0 {
+			line.WriteString(strings.Repeat(" ", (spaces*2+2)-((spaces-i)*2+2)))
+			line.WriteByte(char)
+		}
+
+		line.WriteString(strings.Repeat(string(char), spaces-i))
+		lines = append(lines, line.String())
+	}
+
+	var result strings.Builder
+	for _, i := range lines {
+		result.WriteString(i)
+	}
+	for i := spaces - 1; i >= 0; spaces-- {
+		result.WriteString(lines[i])
+	}
+	return result.String(), nil
+}