Collector Gemstones

Kornerupine and Demantiod Garnets

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Kornerupine and Demantiod Garnets!

Here’s the deal with the Demantiods – all of these were tumbled and then heated in Russia causing an orangish-brown central core that gradually changes to a pretty strong green on the outside.  Most of these will, with a little coercion, break into smaller pieces (probably ranging from 1-5+ cts. each) due to the clear heat fractures present in the stones.  Once in smaller pieces, stones should be facet grade and colors will range from classic Demantiod green to brown-orange in tone.  If there is enough interest in this material, we will pursue more.

Some of the Kornerupine is suitable for faceting, some is probably best served in cabochons or carved.

Click on the Stone Type and Number link in the table below for more information about each stone.

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Stone Type & Number
Grade/Total Weight
Description
Total Price
Add to Cart/Sold

#1 Kornerupine

5.83 ct AA

$20/ct, Origin Tanzania, a bright green with blue/green undertones, feathers present

Sold

#2 Kornerupine

4.65 ct AA+

$35/ct, Origin Tanzania, a bright green with blue/green undertones, some larger pinpoints present

Sold

#3 Kornerupine

8.29 ct A+

$14/ct, Origin Tanzania, a bright green with blue/green undertones, inclusions and divot in stone, beautiful cabochon consideration

Sold

#4 Kornerupine

5.92 ct A+

$14/ct, Origin Tanzania, a bright green with blue/green undertones, inclusions and divot in stone, beautiful cabochon consideration

Sold

#5 Demantiod

15.15 ct AA

$30/ct, Origin Russia, Heated Russian demantiod with VERY INTERESTING orange in the core that fades to green on the outside, some inclusions present including what appears to be rutile needles

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#6 Demantiod

24.64 ct A+

$15/ct, Origin Russia, Heated Russian demantiod with VERY INTERESTING and RARE brown-orange core that fades to green, clear cracks in the stone - you decide how to fashion best!

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#7 Demantiod

43.20 ct A+

$20/ct, Origin Russia, Heated Russian demantiod with VERY INTERESTING and RARE brown-orange core that fades to green, clear cracks in the stone - you decide how to fashion best!

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#8 Demantiod

41.91 ct A+

$15/ct, Origin Russia, Heated Russian demantiod with VERY INTERESTING and RARE brown-orange core that fades to green, clear cracks in the stone - you decide how to fashion best!

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