Okay not really! It's just nanosital, which is a synthetic material very similar to glass. Gemstones always look alarmingly tasty, but this one was so reminiscent of a green Jolly Rancher when I polished it that I just had to give it an appropriate staging.
Design is "Green Lion" by Scott Laborie - several other faceters had been talking about this design as one of their favorites and after cutting it, I can see why! Strongly recommended by me now as well :)
24.0 cts, 19.6 x 12.7 mm
(Only one Jolly Rancher was harmed in the making of this photo op)
I'm not actually sure. Typically faceting uses water to keep the stone cool while grinding. The water would dissolve the sugar and the friction heat would melt and move the candy ever so slightly so I'd never get a perfect polish or accurate meetpoints. If an oil coolant was used, I'm not sure the stone would be edible after... And that doesn't even touch on what a nightmare it would be to clean sugar out of my equipment.
Conceptually, with a lot of foresight, you might be able to do a really crappy faceting of a piece of candy. Realistically it's a nightmare idea and an expensive mess.
Yeah, it'd probably be easier to just make a mold and fill it with liquid candy to set than to cut the already hardened candy to shape. Alternatively, just go buy a ring pop!