Touch Diamond Touch Diamond is a mobile phone manufactured by HTC. Latest user agents:HTC_P3700 Opera/9.50 (Windows NT 5.1; U; ru)HTC_P3700 Opera/9.50 (Windows NT 5.1; U; en)HTC_P3700 Opera/9.5 (Windows NT 5.1; U; en)HTC_P3700 Opera/9.5 (Windows NT 5.1; U; ru)