Search Results for: Jewellery articles of precious metal parts
groups of molluskan bivalves or clams . a nacreous pearl is made from layers of nacre , by the same living process as is used in the secretion of the mother of pearl which lines the shell. natural (or wild) pearls, formed without human intervention, are very rare. many hundreds of pearl oysters or mussels
tiara of empress eugénie ( ) featuring natural pearls, louvre , paris. fine quality natural pearls are very rare jewels. their values are determined similarly to those of other precious gems, according to size, shape, color, quality of surface, orient and luster. single natural pearls are often sold...
https://en.wikipedia.org/wiki/Pearl