Stone: Amethyst Quartz
Frame Material: Solid Genuine .925 Sterling Silver with gold plating
Shape: Faceted coin on both sides
Measurement: 13mm with both rings, stone is 6mm
These stones are known as hydrothermal quartz, which contains the same physical, chemical and optical properties of a natural stone. For further information and details regarding this process, see the AZ Findings Blog: http://www.azfindings.com/blog.