Help knitting a diamond shape

I am trying to knit a diamond shape and I can’t figure it out for the life of me. I need it done in stocking stich and to start with 1 stitch and to increase 2 stiches on every row till there are 13 stitches then I have to decrease 2 stitches every row until 1 stitch remains. I know it sounds simple but it just won’t work for me, I can’t find a increase that does not make holes in the work. I am getting so frustrated because I have tried and tried again with no luck. Any help would be greatly appreciated. Thank you.

Amy has a FABULOUS illustration of different increases here:

The similar decrease page is justy one more click away.

You can see what each inc/dec should look like and you can pick an “un-holey” one. :wink:

If I recall, I think knitting into the front and back of the stitch is one increase that doesn’t leave a hole in the work. I believe Amy has a video of this technique – you start to knit as usual, and then, without completing the stitch by dropping it off the needle, you re-insert your needle into the back of the stitch and knit as usual (dropping the stitch off). The result is two loops created (the increase!).

The Stitch N Bitch book has a chapter on increasing and decreasing which gives good explanations of all the types and when you would use certain types.