Search results

This website, and books on the subject, explain as follows: "Natural pearls are formed when some sort of irritant becomes lodged in the tissue of an oyster or mollusk. In response to the irritation, the oyster secretes nacre which gradually builds up in layers around the irritant." My question...

Dear Sirs, I have an antique pendant, with a top in silver and gold with some small rosecut and old mine cut diamonds, and an eggshaped "pearl" or stone. The colour from this "pearl" is graded/banded white-gray-brownish. It has no lustre or flame structure, but clustered holes translucent...