@UnBornMan,
pearshaped ,old, all natural pearls are now among the most expensive gems in the world. Even surpassing EMeralds and Rubies.
Another pearl of about 1.5 cm in its basal diamter sold recently for 5 million. The Pearl was hung in a platinum (hand made link) chain in a finding that contained a few surrounding 0.25 carat , golden, old cut diamonds.
SOURCE: Maine Antiques Digest (Sept 2012)