Following is an an example of SSL virtualhost which should be helpful for you.
<VirtualHost 192.168.0.1:443>
DocumentRoot /var/www/website
ServerName
www.domain.com
SSLEngine on
SSLCertificateFile /etc/ssl/crt/primary.crt
SSLCertificateKeyFile /etc/ssl/crt/private.key
SSLCertificateChainFile /etc/ssl/crt/intermediate.crt
</VirtualHost>
Certificate should be copied at /etc/ssl/crt/primary.crt
Key should be placed at /etc/ssl/crt/private.key