"Hand made does not scale." It most certainly can if you have the proper equipment. You can facet two or three stones by hand on flat grinding surfaces, or you

"Hand made does not scale." It most certainly can if you have the proper equipment. You can facet two or three stones by hand on flat grinding surfaces, or you can get a rotary lap wheel and spend a day making ten stones, then you can get a mechanical precision arm for the rotary lap and now you can pump out 20-25 high-quality stones per day that sell for good money. It all depends upon your tooling and experience.