Crochet Mini Hearts String Tutorial 112
In todays tutorial I will be showing you how to make this simple crochet heart string. Steel Crochet Hook size 2.mm (#4 US standards) and yarn: 100% Cotton Mercerized, 169m/50g. Variegated yarn: 55% Cotton, 45% Polyacrylic, 160m in 50g, 5 ply and Steel Crochet Hook 2.25mm (#2 US standards)
... - a grouped images picture
The edging in the photo says it is from a pattern found in the web but does not link to it. The chart below is almost identical, only the diamond is 1 row larger and the left border alternates open and filled meshes, whereas on the photo the meshes to the left of the diamond motif are all open.