Lovely fully drilled Tahitian pearl floating delicately on a 18k white gold wheat link chain.?

ID#: NEC293

Tahitian Pearl: One (1) fully drilled, round dark grey Tahitian Pearl measuring approximately 9.5mm in diameter. Pearl has good luster and nacre.?

Metal: 18k white gold?

Length: 16 ? inches

Weight: 6.92g

Markings: '750' (18K gold purity), '737 AR' (Italian hallmark), 'CB'