The dial is made of white mother-of-pearl.

FORBES: The Montblanc Princess Grace Collection

Accompanying the Ono is an 18-karat white gold necklace with a Tahitian black pearl pendant and XS logo for the lady.

FORBES: Outrageous Cocktails

For pearl lovers, the sale includes a three-stranded necklace composed of 143 white natural pearls with lustrous quality.

FORBES: 'Imperial Cushions' Highlight Christie's Hong Kong Jewelry Sale