Very special Demantoids

Hello every one
Is there anyone could help me to value this rough stones ?? They are from 1 carats to 50 carats.
I mined new Demantoids , Please help me to sell them or help give a price on them.

Below one is 48.5 carats.

Below one is 16.4 Carats .lemon green.

The below 3pcs of Demantoids are 16.4 Carats.

Below are more green.

Below are greener and more transparent.

Hi there dear sender pleas contact me on : (+27712817588). on WhatsApp.
Best regards Jarryed.

We’re these mined in Tanzania? They have a gorgeous color. I would refer to the blog of prior to this in which a couple has uncut gems.

“ For the rough, you probably need the services of a professional cutter if your appraiser thinks any of the rough is high end material. I say this because rough is notoriously difficult to value and appraisers are not necessarily familiar with valuing it. Once you have an idea of what to focus on, you can probably develop enough expertise to evaluate the color and clarity of any high end stones and you can look on line for comparables at various commercial sales sites. Loose cut stones can be sold in various Facebook groups that exist for the purpose, at auction houses, on Ebay, or locally to jewelers. If any stones look particularly promising, you might have them certed and appraised. You will need to bear in mind that retail prices are quite different from what you can expect to get if you are selling loose stones…those prices are wholesale or somewhere between wholesale and retail. It’s jewelers and collectors who are buying on line, with perhaps the collectors paying a little more than the jewelers. Hope this helps. -roy”