hey friend, you want to facet? ok making laps that will only end up causing you time and troubles is not worth it. go to ebay and buy the cheap china made laps for cutting/grinding. what size do you need? 6″ or 8″ what machine are you going to use? i’m 78 and been faceting and teaching same for 53 yrs. i’ve use most all machines and laps. the china laps (plated/metal bonded) are cheap/ affordable and very good functionally. if you want to make a lap make a good tin lap for polishing as the ones out there are expensive. if you dont have a machine make that, i’m doing that now for my club members. there’s a new machine from china on ebay item # 183491495656 that is quite affordable. if you need more insight email me at gemmakermz@cs.com