Diamond Grid
An allover field of diamonds touching corner to corner, with no empty ground. As much a feat of tension control as a pattern.
A diamond grid leaves no rest. Where a lozenge field floats shapes on open ground, the grid covers the whole surface — every diamond shares its edges with its neighbours, edge to edge across the rug. You will hear this described as maximum protection, the idea being that a fully covered surface leaves no gap for harm. Take that as the market's reading, not the weaver's testimony.
What is not in doubt is that it is hard to weave. Because each diamond has to meet the next one exactly, the weft tension has to stay even across the full width of the rug. Let it wander and the joins go crooked, and you can see it. This is why the cleanest diamond-grid pieces are admired — the control is visible in the finished cloth. The skill is real and legible, which is a better reason to value the rug than any borrowed symbolism.
The grid often carries a second layer: a small cross, diamond, or dot set inside each unit. From a distance it reads as one uniform field; up close the interiors appear. Like the stepped cross hidden in a lozenge, it is a rug that keeps something back for the person who looks longer.