I just can't get the parts down! They always have this nice diagonal diamond pattern when a braider puts them in -- I'm terrified of what my head might look like if I did them myself.
Once they're in though - I'll redo those things till the cows come home. Especially since braiders tend to make them so tight.
Once you start to get the knack of parting, you can replicate the diamond parts by parting your hair into for sections to start with by creating two diagonal parts that cross at the center of your head. One part would be from the front right hand temple to the back left hand corner, and the other one from the left-hand temple area to the back right hand. Then you would put the front section and side sections into big square plaits to keep them intact and out of the way.
Now you're left with a triangular shape in the back. To get diagonal parts, you will start off by creating a part parallel to one of the original ones (I find it easier to do the left side first) as wide as you want the parts to be. You then pin the bulk of the hair down or plait it to get it out of the way.
You now have a row of hair parted like this (imagine these as two parallel parts):
../ /
./ /.
/ /
(please ignore the dots/periods. I find it necessary to use them to keep the lines in the positions I put them for better visualization coz when I submitted my post without them, the lines moved)
Now you would part a small section using a stroke in this direction
\ so that you end up with a
/
\ at the start.
After braiding that, you would part again using a stroke in this direction
\ again parallel to the one you just made so that you now have
../ ./
./\/
/
\/
In time you will have diamond partings.
../\/\/
./\/\/
/\/\/
I actually like them because they allow for an angular part at the front and the braids overlap in a good way that hides any crooked parts.
And this comes in real handy since im using the crown and glory method. 
Very good demo, Guapa! You said/demonstrated that that better than I could!
