I can use my android phone which has both accounts on it as follows:

1. Open the contact. 2, From menu select Send Vcard via text or email to yourself
2. save the vcard to phone
3. find where the phone saved the vcard - on my phone it is in the folder download on the sdcard 5.open vcard
4. select the google account you want to save the contact to

I can use my android phone which has both accounts on it as follows:

1. Open the contact. 
2. From menu select Send Vcard via text or email to yourself
3. Save the vcard to phone
4. Find where the phone saved the vcard - on my phone it is in the folder download on the sdcard
5. Open vcard
6. Select the google account you want to save the contact to