Geometric had me puzzled, so I put "geometric pattern" into a google image search and some of the first results returned matched a red angel stamping plate image I knew I had.
The following images cost me a cut to my finger. I've heard people say to be careful handling a stamping plate because the edges are sharp and thought "well I've never had any problem..." until now! It poured with blood!
I used a base of a-england Excalibur on all fingers apart from my ring finger. On my ring finger I used a-england Camelot. I stamped over the silver in black and reversed this on my ring finger. The plate I used was RA111 and despite having both of these in Konad polishes, I stamped with the a-englands.
This pattern makes me think of Transformers. Hubby said so too!