Stone: Prehnite Chalcedony
Frame Material: 18K Gold Plated Over Solid Genuine .925 Sterling Silver.
Shape: Faceted oval on both sides.
Measurement: 25mm long, 16mm wide. Stone is 14x18mm.
Weight: 2.5 grams per piece.
These stones are known as hydrothermal quartz, which contains the same physical, chemical and optical properties of a natural stone. Chalcedony stones are extremely similar to quartz with an opaque look. For further information and details regarding this process, see the AZ Findings Blog: http://www.azfindings.com/blog.