Stone: Amethyst, iolite quartz,
Frame Material: 18K Gold Over Solid Genuine .925 Sterling Silver.
Shape: Faceted CUSHION shape on both sides
Measurement: 20mm long 17mm wide, stone size is 14mm.
These stones are known as hydrothermal quartz, which contains the same physical, chemical and optical properties of natural stone. For further information and details regarding this process, see the AZ Findings Blog: http://www.azfindings.com/blog.