AGL Lab Testing

I have had a lot of questions about untreated gems in my brief stint on etsy. One thing I would really like to discuss is getting gems tested. I prefer to get gems tested by AGL, and I am going to talk about an experience with getting a gem evaluated by them.

I want to start out by saying that I’m willing to get any gem tested, so long as the customer pays for shipping and testing. I typically do not get stones tested myself, because most stones don’t merit it, whether through the stones resiliency against treatment, or the the lab test cost ratio to the cost of the gem. It doesn’t make sense to get an AGL Gem Brief that costs $60 (plus shipping both ways) for a $100 gem, especially in the event that it’s a stone that isn’t routinely treated or has a characteristic that isn’t likely to be desirable to the general public (for example, a golden brown topaz). If the untreated designation brings a sale value that is higher than the cost of the testing, then it makes financial sense to do it. Or if the stone is a high enough price, and the stone variety is routinely treated.

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I first contacted AGL about the violet sapphire late in 2014. I wanted to know about the procedures for getting a Gem Brief and then how to upgrade to a Prestige report. Maria emailed me back that I had to indicate it on the submission sheet.

Early in April I filled out the submission form and mailed it off to AGL. After roughly two weeks, I emailed Maria because I hadn’t heard anything from them (it’s a bit weird to mail an item to a location and not get any confirmation that it was received!) and wanted to make sure that it arrived at the destination. I have a deep distrust of USPS after an incident years ago involving Registered and a missing spinel that eventually turned up. Maria emailed me back that the stone had not only been received, but that it was done, untreated, and went through my shipping options. Instead of shipping Registered, she decided it would be a shorter wait to send it via armored vehicle overnight.

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So shortly after that conversation, the sapphire was back in my hands. With it’s fancy AGL Prestige Report. I have joked about this since then, but I’m only half joking when I say that I want to get an AGL Prestige Report on all of my gems. There is a cool digital diagram where the stone was mapped out and has all of it’s measurements and facets displayed, descriptions of the treatment, the color, the rarity, etc. It almost made me wish that I had a gem that was important enough to get a JewelFolio, but being that pricing starts at $3,000, I don’t see that happening soon.

AGL Pricelist
AGL Prestige Report
AGL GemBrief

So let me say again, I have no problems sending a stone off to a lab to have them test it. But sometimes it really just don’t make sense! I suggest that sapphires, rubies, and emeralds have some sort of testing, but honestly, most garnets, spinels, topaz, chrysoberyl, and others probably don’t merit it, just due to the price proportions!

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This sapphire has since sold, and I’m looking forward to seeing how it ends up getting set by it’s new owner!

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Gem Blast: Violet Sapphire

I’ve recently taken possession of a Violet sapphire that perfectly skirts the line between purple and blue. I just had it certified by American Gemological Laboratories. I had never done that before, and it was a pretty great experience, especially when AGL testing found out that it was completely untreated.

3.90ctw 9.6 x 7.69 x 6.39

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I have a colleague who has been seeking out the perfect violet (or blurple, as she calls it) sapphire for the last several years, and this one ticks almost all of her boxes.

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Through her search, I’ve been deeply involved, and recruited several other searchers.

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In the end, this stone was discovered after she found her ideal stone, so she briefly considered using it for a necklace, but decided that she needed to share the wealth instead.

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In our searching, we discovered that these stones are typically color shifting to some extent. This one transitions from blue to purple, but is violet in most mixed lighting situations.

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The color on my laptop screen is less saturated than on my phone, where it looks more like the stone in real life.

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Once I get it back from AGL, I plan on taking a lot more photos of it. It’s a challenging stone to capture.

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You can see that it has some cut flaws, showing a slight darker bowtie in the above image and a small partial window in the two shots below.

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Showing a slight windowing effect that is more visible in picture than in real life. I wouldn’t dream of touching the cut on this, I wouldn’t want to alter the color in any way.

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This stone has been listed for sale on LoupeTroop.