CONCH PEARL AND DIAMOND EARRINGS Conch pearls of approximately 10.04 x 8.70 mm and 9.74 x 8.70 mm, marquise, pear and circular-cut diamonds, gold, 1.7 cm GIA, 2018, report no. 2195622918: two partially drilled natural saltwater pearls, no indication of treatment US$20,000-30,000