He says that part of the reason the Marie Antoinette pearl is worth so much is because it's a natural pearl, which brings us to one quality that determines a pearl's value. Natural versus cultured.

Throughout much of recorded history, a natural pearl necklace comprised of matched spheres was a treasure of almost incomparable value, in fact the most expensive jewelry in the world. Now we see ...

Vintage jewelry is at the heart of this exhibition, which showcases the exquisite craftsmanship of pearls, not to mention ...

Jewelry cleanser and abrasive cleansers ... Rather than being perfect spheres, these pearls have slight, natural variances in their shape and size that add to the overall chicness.

Pearl jewelry is considered by many to be something ... The value of pearls can vary significantly depending whether they are ...

Other auctioned items include the natural pearl and diamond necklace, a pair of pearl and diamond earrings, and a monogram ring with a lock of her hair. One of the other items up for sale is a ...