Keep in mind folks that there are two versions of the HTC Touch Diamond and they both have different bodies. The GSM version has a square shape while the CDMA version has a rounded top and bottom and is slightly shorter. While being shorter, this causes incompatibilities with cases being made for the GSM version.Sena ONLY sells cases for the GSM model and their case is not compatible with the CDMA model. Piel Frama has cases for the CDMA version that will not fit the GSM version. Make sure that the case you are purchasing will fit your particular model