An important 18ct yellow and white gold fancy yellow diamond necklace, consisting of a total diamond weight of 24.54cts. The butterfly style filigree front piece, attached to articulated tennis style sections, is set with a total of one-hundred and twenty three, pear cut, cushion cut and round brilliant cut diamonds of reported total weight 17.89 carats, of fancy light yellow colour, average SI2-I1 clarity, and seven-hundred and seventy-five round brilliant cut diamonds of reported total weight 6.65 carats, F-G colour, SI2-I1 clarity. Total weight 41.95 grams. Length 45 cm.