An enamel, seed pearl and diamond necklace, early 20th century, composed of rectangular links

An enamel, seed pearl and diamond necklace, early 20th century, composed of rectangular links applied with pink guilloché, white and gold enamel, spaced by seed pearls, suspending a pendant bail designed as a ribbon bow, set with rose-cut diamonds, mounted in gold and platinum, necklace length 38cm, French assay marks for 18ct gold, seed pearls untested