Spiny Oyster shell has been used for centuries in jewelry. It can be red, orange, purple and yellow.
Our spiny oyster comes from the coast of Ecuador and is of the highest quality. Spondylus Princeps, known as the "thorny oyster" or "spiny oyster" has interest among Archaelogists, they held important ceremonial and ritual significance to many of the prehistoric cultures of South, Central and North America.
The earliest known illustration of spondylus diving in South America comes from drawings on pottery and murals during the Early Intermediate Period [~200 BCE-CE 600]: and the images probably were of people diving off the coast of Ecuador.