Please join our new sister site dedicated to discussion of gold, silver, platinum, copper and palladium bar, coin, jewelry collecting/investing/storing/selling/buying. It would be greatly appreciated if you joined and help add a few new topics for new people to engage in.
I have seen some facetted that look hands down the best black facetted gemstones. They also have very high hardness, so are hard wearing. I have a couple of kilos of larger stones 10-30 carats and up that I've been saving to make a matched facetted set... one day