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Ed Bristol
  

Here is a variety that has grown immensely on me after we left Sri Lanka and took our sourcing to a global level.

Demantoid is a sub-species of andratite  …read more… 

Mint green demantoid way over 3 carat rare size
Price:
$18,500.00
product
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3.67 Carat
Intense Mint Green
Medium Dark 70
Lightly Included

pear shaped demantoid from namibia over 4 carats
Price:
$12,400.00
product
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4.38 Carat
Ivy Green
Medium Dark 75
Lightly Included

adamantine luster from green garnet demantoid
Price:
$1,400.00
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1.03 Carat
Lively Grass Green
Medium Dark 60
Lightly Included

grass green demantoid in 5mm round diamond-killer
Reg. Price:
$999.00
Sale Price:
$590.00
Save:
$409.00
product
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0.59 Carat
Fresh Grass Green
Medium Dark 65
Lightly Included

grass green demantoid in 5mm round diamond-killer
Price:
$1,250.00
product
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0.84 Carat
Grass Green
Medium Dark 70
Lightly Included

rainbow in luster of demantoid 100% free of inclusions
Price:
$1,890.00
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1.27 Carat
Rainbow Green
Medium Dark 55
Free of Inclusions

grass green demantoid in 5mm round diamond-killer
Price:
$3,600.00
product
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1.79 Carat
Mint Green
Medium Dark 70
Lightly Included

Colorado Topaz
Price:
$2,650.00
product
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1.91 Carat (pair)
Fresh Grass Green
Medium Dark 65
Lightly Included

Price:
$875.00
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0.86 Carat
Grass Green
Medium 50
Lightly Included

Round 2 carat demantoid
Price:
$12,000.00
product
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2.09 Carat
Bright Mint Green
Medium Dark 60
Lightly Included

rare andratite demantoid green garnet in full size
Price:
$4,800.00
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2.83 Carat
Crisp Yellowish Green
Medium 50
Lightly Included

fine high dispersion green demantoid in best cutting certiofie
Price:
$4,900.00
product
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1.73 Carat
Jungle Green
Medium Dark 60
Lightly Included

South African Rhodolite Garnet
Price:
$5,200.00
product
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1.48 Carat
Metalic Green
Medium Dark 60
Lightly Included

mint to ivy green demantoid
Price:
$6,900.00
product
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1.83 Carat
Mint to Ivy Green
Medium Dark 60-75
Lightly Included

grass green green demantoid precision cut
Price:
$12,400.00
product
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2.02 Carat
Mint Green
Medium Dark 70
Lightly Included

pair untreated demantoids
Price:
$1,550.00
product
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1.37 Carat (pair)
Grass Green
Medium Dark 65
Lightly Included

South African Rhodolite Garnet

3.72 Carat (sold)
Rusty Metallic Green
Medium Dark 60
Very Lightly Included

namibian demantoid with highest brilliancy
Price:
$1,250.00
product
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0.81 Carat
Fresh Grass Green
Medium Dark 60
Lightly Included

pair round brilliant demantoids non russian
Price:
$2,950.00
product
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2.01 Carat (pair)
Fresh Grass Green
Medium Dark 65
Lightly Included

Green garnet demantoid with highest RI
Price:
$9,600.00
product
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2.54 Carat
Deep Metallic Green
Medium Dark 70
Lightly Included

top luster demantoid in grass green
Price:
$1,890.00
product
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1.27 Carat
Flashy Grass Green
Medium Dark 60
Lightly Included

big cushion demantoid over 3 carat
Price:
$9,600.00
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3.07 Carat
Pine Green
Medium Dark 75
Lightly Included

emerald cut grass green demantoid
Price:
$1,550.00
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1.16 Carat
Metallic Green
Medium Dark 60
Free of Inclusions

 

neon green diamond like garnet
Price:
$1,400.00
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0.86 Carat
Electric Green
Medium 55
Free of Inclusions

pair oval demantoids with best lustre
Price:
$2,600.00
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1.70 Carat (pair)
Grass Green
Medium Dark 60
Lightly Included

pair of pure green certified russian demantoids

3.23 Carat (pair) (sold)
Dense Pure Green
Medium Dark 75
Lightly Included (horsetails)


 

earthly colored round demantoid over one carat
Price:
$1,490.00
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1.24 Carat
Lively Ocher Green
Medium Dark 60
Free of Inclusions

pear grass green demantoid for pendant
Price:
$1,690.00
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1.22 Carat
Rich Grass Green
Medium Dark 65
Very Lightly Included
round solitary sparkly demantoid in best green
Price:
$900.00
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0.74 Carat
Rich Grass Green
Medium Dark 70
Lightly Included

yellow green demantoid clean and fresh
Price:
$980.00
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0.78 Carat
Bright Lemon Green
Medium 50
Lightly Included

fine green demantoid with diamond luster
Price:
$1,390.00
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0.89 Carat
Bright Jungle Green
Medium Dark 65
Lightly Included

matching pair of certified untreated green garnets in highest quality
Price:
$2,240.00
product
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2.25 Carat
Intense Lime Yellow Green
Medium 50
Free of Inclusions

lime green garnet in natural untreated oval from west africa
Price:
$930.00
product
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1.24 Carat
Intense Lime Yellow-Green
Medium 55
Free of Inclusions

rare one color only lime green-yellow andalusite in natural untreated oval from brazil no pleochrois
Price:
$1,750.00
product
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2.91 Carat
Sparkly Yellow-Green
Medium 50
Lightly Included


...continued

Demantoid is a sub-species of andratite which again is a sub-species of garnet. The other famous green garnet is Tsavorite, a grossularite and sister to hessonite. From this short intro we see that garnets are one of the mega families in the gem kingdom.

Demantoid began its public life as a predominately Russian product but it is today mined all over Africa and southern east Europe and the middle East. The ‘old’ Russian material, which the Czar was said to have loved so much, still commands the highest prices but has become very rare with few new mines and little estate sales. This gap was filled mainly by Namibian demantoids, though, in the beginning and absolutely unjustified, the market snubbed them for being less green (sometimes true) or less brilliant (not true at all, on the contrary).

Fresh demantoids now come from a variety of places, Pakistan, Madagascar, Iran, and even Turkey. Pakistani, Iranian and Afghani demantoids may even show the same horsetail inclusions that made Russians so expensive. Here is another example of subjectivity in the gem market. In 99% of all cases inclusions are deemed bad, yet in demantoid an asbestos-based impurity ups the price by a third, despite the unhealthy taste the word 'asbestos' leaves behind. So be it!

The one most obvious feature of demantoid is its Guinness Book of Records level fire. It beats any diamond before breakfast and adds fine greens for free. Other gems may rival their green, like emerald, chrome tourmaline or tsavorite, but never ever their adamantine sparkle. Our close-up images often catch little rainbows inside the gems, the hall mark of high dispersion or the splitting of white light into its main components (like rain splits sunlight - a rainbow). Only sphene or sphalerite surpass demantoid's brilliancy, and only the former is qualified for jewelry.

The rainbow fire magic aside, demantoids are a pest in front of the camera. Their purest green turns yellowish, their luster can't be shown (except on video which, forgive us, we don't do), they like to have inclusions that grow as soon as the camera comes out. Nevertheless, they are a fantastic sight in person.

Brilliancy oriented cuts, with as many facets as possible, preferable in precision quality, produce the most dazzling effect.

Almost as with rubies, size is critical in demantoid, one carat is a full weight, two carats are massive, and gems over four carats should be registered with the government as an addictive substance or weapons of mass distraction.

As a rule, the greener a demantoid the more expensive it is, however, a step sideways into yellow or brown, then probably called simply andratite will dramatically reduce your funds blood-letting, but provide as much fire and sparkle magic as green. And who says a sparkling rainbow in yellow is less attractive than a rainbow in green? Yet, as our prices attest, the market dictates that green-green is better. So be it!

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