Overall Dimension (including bail): 1.55 x 1.75 x 0.25 inches
Inner Bail Diameter: 9 mm
Weight: 9.3 grams
Stamp/Mark: Starborn, 925
Serial Number: p31256
Chalcedony is the general name for a variety of colored quartzes, many of which have a creamy appearance and luster. The gemstones given the name chalcedony are usually white to bright blue, while other colors have been given separate names--for instance, black onyx, green chrysoprase, and orange carnelian.