An 18K yellow gold pin by Cartier dating to 1989 featuring a black onyx base with four green carved chrysophase leaves each measuring approximately 12.30mm x 7.80mm, accented by eight round cabochon sapphires each measuring approximately 2.70mm, approximately 0.80 carats altogether, and sixteen round brilliant-cut diamonds. Diamonds are near colorless (F - G), with VS clarity. Total estimated weight of diamonds: 0.20 carats.