shape
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Bicolour tourmaline

Sapphiregirl84

Rough_Rock
Joined
Aug 11, 2020
Messages
34
Hey all. I’m just learning about tourmaline and wondering what you think of this? 8.8 carat 1000 AUD. It’s pretty but I know nothing and don’t know what to look for in these stones 41718719-5F0C-405E-A4B7-DF27F90022FA.jpeg
 

Bron357

Ideal_Rock
Premium
Joined
Jan 22, 2014
Messages
6,641
You have to be careful, they are making all sorts of pretty colour ”gemstones” these days that are at worst simply glass or at best lab corundum.
buy only from reputable vendors ideally with a lab report.
Bi colour tourmaline exists of course, but Im only familiar with red / green ie watermelon tourmaline.
i haven’t seen natural reddish orange toning to lemon. Not to say it doesn’t exist but that and the “flawless ness” sets off warning bells to me.
proceed with caution.
 
Joined
Jan 20, 2012
Messages
4,554
Oh yes, AJS Gems sells lots in this coloration. It's very pretty! Keep in mind that the greater the contrast in colors and the more 50/50 the split, the more rare and collectible the stone. So a stone that is roughly 50% red and 50% green (called "watermelon" in the trade) would be most valuable, because red and green are opposites on the color wheel (most contrast). :)
 

fredflintstone

Brilliant_Rock
Joined
Jul 18, 2020
Messages
993
Hey all. I’m just learning about tourmaline and wondering what you think of this? 8.8 carat 1000 AUD. It’s pretty but I know nothing and don’t know what to look for in these stones 41718719-5F0C-405E-A4B7-DF27F90022FA.jpeg

Yes, bi-color tourmaline come in these colors. I know nothing about the vendor. The price is good.
 

T L

Super_Ideal_Rock
Premium
Joined
Sep 20, 2008
Messages
25,225
I think there is a window. I would like to see the gem held up in the air, with the table facing you directly, to see what f it has a window. At $200/carat, that color is a fair price. I wouldn’t call it a bargain. Of course, with inflation, I could be way off.
 

T L

Super_Ideal_Rock
Premium
Joined
Sep 20, 2008
Messages
25,225
It looks a bit dead in the middle. Maybe others can comment. The best way to see the window is to put it on something other than a white or light solid color,
 

chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
38,364
Any picture straight down the table, rather than angled? Hard to see the quality of cut.
 

fredflintstone

Brilliant_Rock
Joined
Jul 18, 2020
Messages
993
The cut is fine.

This stone was most likely cut in Peshawar, Pakistan and is a Afghan Tourmaline. The cutting from there is of a very high standard in most cases. Much better than most source countries. Much of it is precision cut.
 

chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
38,364
With that angle in photo, impossible to tell whether it is windowed.
 
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