Peridot, pronounced as "pear-a-doe" is known for its shimmering yellow- green color and is the official birthstone for the month of August. Peridot is known as "gem of the sun" and is derived from the Greek word "faridat" which means "gem".
Peridot is a variety of olivine. And are mined some 1500 BC on Saint John's Island near Egypt. Peridots are found in Arizona, China, Myanmar, and Pakistan.
Peridots are believed to bring royal dignity upon its wearer.
Ancient traditional birthstones:

• Arabic: Sardonyx
• Guardian Angel: Verchiel
• Hebrew: Carnelian
• Hindu: Ruby
• His Talismanic Stone: Diamond
• Polish: Sardonyx
• Roman: Carnelian

The name Sardonyx comes from the Greek word Sard "reddish brown" and Onyx "veined gem". Sardonyx is a variety of the silica mineral called chalcedony.
Sardonyx is a form of onyx and is recognized by its layers of reddish brown and white banding. This gemstone is especially good for engraving.
Sardonyx can be a wedding/ anniversary gemstone for the 7th and 10th year of marriage.