D.Bullet Birthstone necklaces come in every color for the month you were born in. Made from crystals and authentic bullets, these make great gifts and charms for both men and women. Customize your bullet, color, and chain to get the best D.Bullet birthstone necklace for you. Bullets and chains are available in gold and silver color. The actual bullet and crystal charm in 1″x .5″ and the chains come in 16″ length.