You didn't create any partition. Instead the MBR got bogus by using GParted. Probably the CoreStorage LVG and all subsequent containers got corrupted also. Additionally the recovery partition wasn't moved properly. But this a different problem.

Instead of the MBR you should have a pMBR. After removing the bogus MBR you have to destroy and recreate the GUID partition table:

- Boot to Internet Recovery Mode
- Open Terminal in the menubar Utilities -> Terminal
- Get an overview (especially the *gpt* command is important!):

        diskutil list
        gpt -r show disk0
- Unmount disk0:

        diskutil umountDisk /dev/disk0
- Delete the MBR:

        dd if=/dev/zero of=/dev/disk0 bs=512 count=1
- Destroy the GUID partition table and create a new one (this also creates a fresh pMBR):

        gpt destroy disk0
        gpt create -f disk0
- Rebuild all previous GUID partitions:

        gpt add -i 1 -b 40 -s 409600 -t C12A7328-F81F-11D2-BA4B-00A0C93EC93B disk0
        gpt add -i 3 -b 488965176 -s 1269536 -t 426F6F74-0000-11AA-AA11-00306543ECAC disk0
        gpt add -i 2 -b 409640 -s 409602008 -t 53746F72-6167-11AA-AA11-00306543ECAC disk0


 If you get a resource busy error after one of the steps, just unmount disk0 again with 

        diskutil umountDisk /dev/disk0

Check the disk with `diskutil verifyDisk disk0` afterwards. 

Enter `diskutil cs list` and check if all four CoreStorage containers appear: a Logical Volume Group, a Physical Volume and Logical Volume Family and a Logical Volume.

With the UUID of the Logical Volume mount the LV:

Example:

        +-> Logical Volume 9A7B21AA-F9FE-4E65-8C7E-ED2A73744C15
            ---------------------------------------------------
            Disk:                  disk17
            Status:                Online
Then use:

    diskutil mount 9A7B21AA-F9FE-4E65-8C7E-ED2A73744C15

Then after getting the disk identifier of the mounted LV with `diskutil list` verify the volume:

    diskutil verifyVolume disk17 # probably it's disk17, disk16 or disk18

 Below I assume the disk identifier is disk17

---

If the Logical Volume doesn't appear or if the disk verification fails, report back and leave a comment.

If the Logical Volume Family and the Logical Volume don't appear try the following:

- Boot to Internet Recovery Mode
- Open Terminal in the menubar Utilities -> Terminal
- Get an overview (especially the *gpt* command is important!):

        diskutil list
        gpt -r show disk0
- Unmount disk0:

        diskutil umountDisk /dev/disk0
- Remove the current partition entry for the second partition:

        gpt remove -i 2 disk0
- Add a new "expanded" second partition entry:

        gpt add -i 2 -b 409640 -s 488555536 -t 53746F72-6167-11AA-AA11-00306543ECAC disk0
- Then repeat all verify steps:

 Check the disk with `diskutil verifyDisk disk0` afterwards. 

 Enter `diskutil cs list` and check if all four CoreStorage containers appear: a Logical Volume Group, a Physical Volume and Logical Volume Family and a Logical Volume.

 With the UUID of the Logical Volume mount the LV:

 Example:

            +-> Logical Volume 9A7B21AA-F9FE-4E65-8C7E-ED2A73744C15
                ---------------------------------------------------
                Disk:                  disk17
                Status:                Online
 Then use:

        diskutil mount 9A7B21AA-F9FE-4E65-8C7E-ED2A73744C15

 Then after getting the disk identifier of the mounted LV with `diskutil list` verify the volume:

        diskutil verifyVolume disk17 # probably it's disk16, disk17 or disk18

 If you get errors backup the data or the whole partition to an external volume then repair the volume with `diskutil repairVolume disk17`. One possibility to backup the data is `dd`. Attach a HFS+ formatted drive with at least 250 GB free space. Get the path to the external volume with `ls /Volumes`. Then unmount disk17 and disk0 with `diskutil umountDisk disk17` and `diskutil umountDisk disk0`. Then clone the partition to a file: `dd if=/dev/disk0s2 of=/Volumes/ExternalDriveName/disk0s2.rawdevice bs=4m`. If the volume name contains spaces, escape the spaces with backslashes: `...of=/Volumes/ExternalDriveName\ With\ Spaces/disk0s2.rawdevice...`.