Stone: Blue Topaz Quartz
Frame Material: 18K Gold Over Solid Genuine .925 Sterling Silver.
Shape: Square shape
Measurement: Stone is 18mm, the charm is 20mm , and 24mm with ring. Jupmring is 19 gauge, 4.5mm.
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.