I could not find any price of zultanite over 30 carats. Can anybody tell me what the value is of having rough zultanite.
Would there be any lovers to buy this rare stone?
It is soft, very brittle, and the colour is usually not terribly attractive. A general estimate of 30 ct rough is a 10 ct faceted piece. Price will also vary depending on the colouration. The common name is Diaspore.
Top quality can command a good price but with a lot on the gems / rough market the colour change is very slight and clarity not good.
It was a bit “flavor of the month” due to an episode on the TV show “The GemHunters” however the interest has since died down.
There is quite a lot available on eBay, uncut isn’t of much interest or use to “ordinary buyers” and due to the brittleness and lower Moho grade it isn’t very popular amongst cutters or Jewellers. It’s just not “mainstream” in the gem world.