Nanocrystalline Diamond Treatment
For years the fans and lovers of the Asha Diamond Simulant have longed for Asha gemstones to be available in all sizes including very small melee sizes. However the smallest size the H&A Asha is currently available is a 0.25ct.

In partnership with one of the most innovative and state-of-the-art laboratories in the United States, we are pleased to offer our complete line of jewelry set with Asha stones and accented with our new diamond-infused cubic zirconia side stones. Using a patent-pending nanocrystalline diamond coating process, our diamond-infused side stones truly mimic the look and feel of genuine diamonds. It also increases the hardness and durability of the gemstone similar to the Asha diamond treatment process. Click here to learn more about the benefits of the Diamond Treatment.

Although the nanocrystalline diamond treatment is different than the Amorphous Diamond Treatment employed by BTD's lab, the final result is very similar: a very high quality layer of diamond is infused into the upper layers of the gemstone, creating a gemstone that is very diamond-like in appearance to the unaided eye.

Our diamond-infused gemstones are flawless in clarity, approximately a G on the GIA diamond color scale, and are cut to ideal or near ideal proportions.



Samples of the diamond-infused gemstones were tested by Evans Analytical Group. Below are excerpts of their findings:

Sample images and graphs from the EAG lab analysis



Below is the raman Spectroscopy analysis of our diamond-infused gemstones. As seen in the graphic, a diamond peak is observed at ~1330cm-1 which is consistent with the raman shift observed in natural diamonds and in the Asha diamond simulant. This provides further evidence of the diamond surface of our gemstones. Please see our Independent Testing education page for more information on Raman Spectroscopy analysis.


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