This is a natural red agate (agate) seal. I purchased it from China 20 years ago. It is unused, so you can have it engraved from scratch. Natural red agate is said to have the power to bring health, good luck, and fortune. Because of its high hardness and resistance to abrasion, it has been used for jewelry, ornaments, seals, and other items since ancient times. It is characterized by a vivid, translucent, deep crimson color with pale stripes. Thank you for viewing.