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.

Perumar and aventurine in sterling silver with silver chain.