Gemstone Reports

Lapis Lazuli: Imitation

Growth or Treatment: Imitation

Identification Tools Required: Magnification, Chelsea filter.

How to Identify: 

Primary Test: Magnification will reveal a totally unnatural appearance to this material. Rather than offering a mottle blue color with large color variations, this material shows far too uniform of a blue color with small blue spots throughout. Also present will be a white streak when scratched. Anyone familiar with natural lapis lazuli should not be confused by this material.

Secondary Tests: Chelsea filter is a secondary test if required. Natural lapis lazuli will have a slight red reaction to the Chelsea filter, something that is missing from this imitation material.

Repair and Setting: Use the same precautions for all lapis lazuli and any porous gem material. No cleaners as the stone is very porous and will soak up cleaner. No heating in ultrasonic or by torch.



About Us

The Gemstone Treatment Report is a free access reference and study site powered by the International School of Gemology for the benefit of consumers and the gemstone industry. Visit us at this link: International School of Gemology.


Subscribe to our e-mail newsletter to receive updates.

Email Marketing You Can Trust

© Copyright 2015 YourGemologist LLC. All Rights Reserved.No copying, duplication or distribution to other websites without expressed written consent of YourGemologist LLC.