A cultured Tahitian black pearl necklace, a single strand of thirty-seven near round pearls, dark grey with green overtones, (11.4.4 cm-13.8.9 cm size, medium lustre, slightly blemished-blemished), the 14ct black gold filigree ball clasp set with four small round brilliant cut diamonds (H-I colour, SI1 clarity), length 49 cm.