Cf. F. Cologni and E. Nussbaum, Platinum by Cartier, Harry N. Abrams Publishers, 1995, New York, p. 188 and 189 for a similar diamond and carved coral rose.
COLLIER ONYX, CORAIL ET DIAMANTS
Composé de seize rangs de boules d'onyx, finissant sur le devant par un pompon surmonté d'un élément en corail et diamants, une rose en corail sculpté sur le côté, le tour de la fleur et le pistil sertis de diamants, 47.0 cm, poinçons français pour l'or et le platine
Prospective purchasers are advised that several countries prohibit the importation of property containing materials from endangered species, including but not limited to coral, ivory and tortoiseshell. Accordingly, prospective purchasers should familiarize themselves with relevant customs regulations prior to bidding if they intend to import this lot into another country.