A FINE BELLE EPOQUE PINK TOPAZ AND DIAMOND PENDANT NECKLACE, FRANCE, EARLY 20TH CENTURY, in 18ct white gold and platinum, the pendant set with an oval cut pink topaz of approximately 5.80 carats in an openwork border of rose and old cut diamonds, suspending a pear cut pink topaz of approximately 4.00 carats in a border of old cut diamonds, suspended from a later trace chain, pendant with French import marks for 18ct white gold, French maker's mark and inventory number, chain stamped P