Burst out with color with pleasant peridot necklaces. This August birthstone has an emerald-like green color that is loved by most women. Each peridot necklace we sell is unique and beautiful. A peridot necklace can be short or long. There are a variety of clasp types on a peridot necklace that will keep it secure at all times. Add a colorful combination with a perky peridot necklace.