Perumar is a beautiful stone found in recent years in Peru, thus the name. It has the blue of larimar plus unusal striping. Paired with aventurine cabs and a silver chain, it's wearable for special occasions and everyday elegance. It measures approximately 1 1/2 inches long and 3/4 inch wide. The chain is about 19 inches. The bail is made to accommodate other chain and cords.