Red Zircons cut into a really super flashy and popular finished stone so the price for this rough has been going nuts lately. I've been offered a few parcels of really outstanding material but the price has just been too much. So here's where I did some thinking and came up with the common element between all of the reds being sold, heat treatment. Now if you see a rose colored Zircon like this one:


It's a pretty safe assumption that it's been cooked even if the seller doesn't say it. So why pay for heat treatment on these if you can do it yourself? And you can do it yourself but be careful and take appropriate precautions. There are videos on facebook showing a faceted Zircon being heated on a conventional electric stove top although I'd recommend doing it in a pan with a glass lid. 

Anyway, Long story short, I was able to get a shipment of unheated red Zircon facet rough. These are all extremely dark but can be heated to a lighter color. I recommend first faceting your stone and then doing the heat treating so you can stop at whatever level or color you want. Zircon's just about the only stone that can take a rapid heating and cooling so I would NOT try this with any other stone. Here are a couple of video's of my friend Steve Ulstowski, of New Era Gems, heat treating one of these on a electric burner- Pete


https://www.facebook.com/steve.ulatowski/videos/vb.1351140550/10204421798608966/?type=2&theater

https://www.facebook.com/steve.ulatowski/videos/vb.1351140550/10204421844930124/?type=2&theater
RZIR5.15.05
15.05ct
14x9x8.5mm
$176.84usd
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RZIR6.17.42
17.42ct
15x9.5x9mm
$204.69usd
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RZIR7.12.77
12.77ct
13x10x8mm
$150.05usd
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RZIR10.8.27
8.27ct
10.5x9x7mm
$79.39usd
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RZIR11.8.41
8.41ct
10x9x6.5mm
$80.74usd
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RZIR12.8.60
8.60ct
11x9x8mm
$82.56usd
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RZIR15.7.03
7.03ct
11x9x6.5mm
$67.49usd
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RZIR16.7.30
7.30ct
10x9x5.5mm
$70.08usd
RZIR17.7.75
7.75ct
11x8.5x5.5mm
$74.40
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RZIR18.8.41
8.41ct
12x7x7mm
$80.74usd
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RZIR19.8.58
8.58ct
14x6x5mm
$82.37usd
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Blue Zircon (Heated)
Nigerian
BZN1.9.00
9.00ct
12.5x10x7mm
$49.50usd
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BZN3.16.63
16.63ct
13x13x10.5mm
$144.68usd
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BZN11.6.49
6.49ct
10.5x7x6mm
$35.70usd
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BZN15.6.54
6.54ct
10x8.5x6.5mm
$35.97usd
BZN16.6.83
6.83ct
12x8x5.5mm
$37.57usd
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BZN17.7.60
7.60ct
12.5x7.5x6.5mm
$41.80usd
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Cambodian Blue Zircon (Heated)
I've been asked about the difference between the Cambodian and Nigerian Blue Zircons. Specifically, the difference in how they cut and the appearance of the cut stones. From my experience with them, so far I cannot tell of any difference :)

BZC5.4.27
4.27ct
8x7x4.5mm
$21.35usd
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BZC8.4.67
4.67ct
9.5x7x5.5mm
$25.69usd
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BZC9.5.34
5.34ct
8.5x7.5x6.5mm
$33.64usd
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A stunning Rhodolite cut by my good friend Christiane Morin
:)