18k GOLD, DIAMOND & ONYX BROOCH PURCHASED AT BERGDORF GOODMAN: Undulating black onyx flows beside a channel of square cut diamonds, under a wide ribbon of 18k yellow gold. Marked 18k AJ?, approx. 3 3/16''l. x 1''h., 25 grams. Small crack in onyx, hard to find with the naked eye. In original Bergdorf Goodman box, with 2004 jewelry catalog. Est. $1500/2000**