Stone: Black OnyxFrame Material: 18K Gold over Solid Genuine .925 Sterling Silver
Shape: Faceted pear shape on both sides.
Measurement: 18mm long 11mm wide, stone size is 13mm x 10mm. Weight: 1.08 grams per piece.
These stones are known as hydrothermal quartz, which contains the same physical, chemical and optical properties of a natural stone. Chalcedony and onyx 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.
