Shell pearl necklace- 18" length

this is a beautiful and super classic strand of faux (Shell) pearls. the claps has a filigree design and is stamped "G Silver" but I do not know if it is actually silver. there is some discoloration on the clip part of the claps. the pearls are cream with a slight pink overtone and knotted between and measure 6.5-7mm in diameter. they look a little more yellow in the photos than they are in person. this necklace is 18 inches long.