a pearl that forms in nature with no human intervention
a pearl that has grown in the mollusk on its own, without human intervention
a solid gem made from layer upon layer of pearl material, or nacre, formed over the course of many years around a tiny particle inside the mollusk
A pearl that forms naturally when a grain of sand or other small object enters the oyster. If the oyster is unable to eject the object, it will coat the object with layers of nacre to form a pearl. Because here is no way to determine if an oyster contains a pearl, the culturing process was invented for a more dependable pearl supply.
a pearl that forms naturally when a grain of sand or other small object enters the pearl. If the oyster is unable to eject the object, the oyster will coat the object with layers of nacre to form a pearl. There is no way to determine if an oyster contains a pearl, so to create a dependable pearl supply, the culturing process was invented.
A pearl that is formed completely by nature. That is, when a parasite or grain of sand enters a mollusk, the mollusk protects itself from the irritant by surrounding it with layer upon layer of nacre, the shiny substance from which pearls are made. Natural pearls also are referred to as "genuine" or "oriental" pearls. omega back A type of earring back that consists of a post and a hinged lever with a loop at one end that can be snapped closed over the end of the post. An omega-back closure is very secure. Also referred to as a leverback.
A pearl that formed naturally without human intervention.
Any pearl that is formed without human assistance.
A natural pearl (also called a genuine pearl) is a pearl that was produced in an oyster, freshwater mussel or other mollusk as a reaction to a tiny invading object that happened to be caught inside its shell.
A pearl that begins as a piece of grit or other foreign substance that makes its way into the shell of a marine or freshwater mollusk (oysters, clams). A defense mechanism kicks-in to coat the particle with layer after layer of a substance called nacre, eventually forming a pearl.
A pearl formed through a process of a mollusk secreting nacre around an irritant that enters the shell naturally without artificial insertion. (See pearl.)