Green Rough colored Diamond / Shall I cut it?

Hello friends,

I’ve recently bought a natural-colored green rough diamond which is about 1ct; I tried to send it to a company to polish it but all the companies that I contacted refuse to accept it, a friend says It won’t be green after polishing as the green skin is too thin.

Do you know any company or person who accepts to polish it?
How can I know if it will produce a green facet or not?

Also the rough has yellow-green fluorescence with medium intensity in the middle of the stone and faint at the outer shell (fluorescence zonation)
any comment on the fluorescence?

Thanks for your consideration,

Can’t say for sure if it would still be green, but I don’t see why not. Your pal doesn’t know much about rocks does he? I cut stones by hand and that does not mean without a jig- it means without a machine. I use a simple Diamond plate and work them by hand. I’m doing that I can cut really small stone without breaking them and get a good polish without over cabbing. I’d try to hand cut them.

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The vast majority of green diamond rough has the color confined to a very thin layer at the surface resulting in a colorless diamond after cutting. Fluorescence in the body of the rough is meaningless. See:


GIA Green Diamonds Tutorial:


Thanks for your precious reply

Do you cut diamonds like that? Can you cut this one?

my friend is not so experienced with green diamonds, so I decided to search and ask for more exact information

Dear Mr. Bergman,

Your valuable assistance is so precious to me.

Yeah, I exactly know what you mean as I read a couple of scientific articles about green diamonds. Also thanks for the media you shared.

I saw stones on leibish that obviously the color is just from a couple of facets in the pavilion, and the color distribution is so limited in the stone.

By the way, do you know any way to cut this stone? aside from the risk of becoming colorless

I think it’s absolutely beautiful as is in it’s natural state. You might want to consider leaving it alone and enjoy it by taking it out of it’s storage container from time to time.

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Thanks Darrel,

Yeah, I think it’s a good way to go, but as I was looking to have a natural green facet I bought this and now it seems that no one accept to polish it, maybe I sell it to just get a green facet.

Thanks for your opinion