Since I devised this technique myself, it doesn't have an actual name, as yet.
Technically, it's not only cross stitch, but a combination of that and 'back' or 'straight' stitch, all based on counting the threads of the fabric.
A good number of years ago, I hit on the idea of designing geometrically based patterns, based loosely on traditional 'blackwork', but with crucial differences: while that technique invariably comprises straight stitches and only sometimes 'simple' cross stitches, I give greater definition to a pattern by combining the two in original ways; crucially, however, instead of a solid coloured embroidery thread, I use variegated.; and lastly, of course, comes my favourite bit - embellishment. Here I've used gold metallic thread, which gives the finished cloth a rich and sumptuous effect: it also adds quite a lot of weight, so the finished product really does feel like 'cloth of gold'.
I often add tiny, tiny beads - coloured and/or metallic, always placed in keeping with the basic geometrical design.
I should, perhaps, mention that I always use evenweave fabric - 28 or 32 count, usually - which, I think, 'hides' the fact that it's all achieved by counting threads.
Very often I 'tea dye' the evenweave, before I start, because I adore the finished 'antique' effect to the whole. I believe that this equals heirloom embroidery any day!
It does take time, and patience, but I find this kind of work nothing short of meditative.
Try it and I guarantee you'll come to love it.