This is pattern B-8 in Dorothy Reade's booklet "Decorative Panel Designs". It has similarities with both Ogee Design and Diamond Mesh.
For the swatch, instead of ssk I have used k2tog tbl, as this is in the original pattern, being Dorothy Reade's preferred method for a left leaning decrease. However, I think ssk would look better and even be easier to work.
Shown with a cast-on count of 61 stitches.