Simulated Birthstone Cross Pendant and Necklace in Yellow Gold Tone 18"- August- Simulated Peridot Top Rated Seller - Trusted since 1952 - 90 Day Guarantee - Easy Returns Birthstones, historically sentimental, represent the month in which you or a loved one was born. Pendant Style: Cross With this sparkling birthstone cross pendant. A round birthstone is highlighted with white crystal accents. Includes 18" chain. Yellow gold tone. Specify birth month. Birthstones are simulated gemstones.