this happened to me yesterday
Picasso, Constellation drawings, 1924.
I haven’t got a clue. Thank you for bringing this to my attention. I do have a wonderful ATS teacher in upstate, NY. I’ll ask and see if she knows but i haven’t been able to find any further info either.
Tourmaline crystal - ready for cutting? The prices of tourmaline vary tremendously, depending on the variety and quality. Most expensive gemstones are the Paraiba tourmalines, which may reach tens of thousands of dollars per carat. Chrome tourmalines, rubellites and fine bi-colors may sell for as much as $1000 per carat or more.
This is everything.