Stone Slab (Granite, Quartz, etc.) - Repair

This is a small project. I was hoping to hire someone with the tools and experience for stone cutting (this is not a giant fabrication project). I already purchased a granite remnant (19.5inx72in) that I want cut into two pieces (19.5x31.5in). Ideally the person would be able to work on site to cut the remnant. It is already flat polished on 4 sides, so when it is cut, we would need those cuts to be flat polished. No installation needed.