At a glance
| Water | Saltwater |
|---|---|
| Mollusk | Queen conch, Aliger gigas (formerly Strombus gigas and Lobatus gigas) |
| Where | Natural only; the Caribbean Sea is among the seas where non-nacreous pearls are found |
| Shapes | Varied |
| How it starts | None: natural |
| Growing time | Natural |
Conch pearls are natural pearls from the conch Aliger gigas, the species formerly called Strombus gigas and Lobatus gigas (GIA). They are non-nacreous: they are not made of the layered nacre that gives most pearls their glow, so they look more like polished porcelain.
What to look for
Non-nacreous pearls are judged differently. Many show "flame structure," a shimmering pattern of fine flames on the surface. GIA's study of natural non-nacreous pearls found bodycolors across these pearls ranging from white, orange and pink to brown, purple and black, with no evidence of color treatment in the pearls tested.
Finding a good one
GIA notes that finding a good-quality saltwater natural non-nacreous pearl is challenging. These pearls were likely produced in oceans and seas around the world, including the Caribbean Sea, the Gulf of California and the South China Sea.
Buying advice
Because conch pearls are natural, ask for a report from a recognized lab for anything expensive, and keep them away from strong light and heat like any pearl.
Frequently asked questions
What is a conch pearl?
A natural, non-nacreous pearl from the conch Aliger gigas. It has a porcelain-like surface rather than nacre and may show flame structure (GIA).
Are conch pearls real pearls?
Yes. They are natural pearls, just not nacreous ones.
Questions from readers
Question about Conch pearls? Ask it here. We answer the useful ones on this page.
Ask a question
Sources
Checked October 22, 2026. How we check our facts.