This article introduces a simple and non-destructive method to identify impregnated treatments in aquamarine.
Basically,
what happens is that fractures in the aquamarine are filled with a polymer
mixed with dyeing material. This not only enhances the color of the aquamarine
but also hides the fractures.
The
result is a beautiful, polymer-filled aquamarine that is often sold under the
name of Santa Maria Aquamarine. Most of these treated aquamarines come from
China (in bead shapes, making bracelets or other jewelers items) and Thailand
(in faceted and cabochon shapes).
Gemstone
traders purchase them at wholesale prices and then sell them at retail prices
on social media platforms, eBay, or other e-commerce networks.
To
identify a specific type of treatment in aquamarine, here's what you need to
do: Grab the stone with a stone tweezer or simply use your fingers. Then,
position a source of white light (fluorescent light / LED light preferable)
behind the stone, just like you can see in the pictures that come with this
guide.
Grab the stone with a stone tweezer
or simply use your fingers. Then, position a source of white light (fluorescent
light / LED light preferable) behind the stone.
 |
| Grab the stone with a stone tweezer or simply use your fingers. Then, position a source of white light (fluorescent light / LED light preferable) behind the stone. |
Now,
pay close attention to the stone and look out for any blue flashes or a cloudy
appearance. You can see an example of this in the picture below.
 |
| Note the strong bluish fleshes |
If
you want to dig deeper and get more detailed observations, you can use a 10x
loupe or a gemological microscope. Take a closer look at the color
concentration within cracks and fractures, and who knows, you might even spot
some air bubbles.
 |
| Note the blue color concentration in cracks |
By following these steps, you'll be able to identify the treatment that has been done on your aquamarine. So go ahead and give it a try!
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