A Magnificent diamond necklace, by Harry Winston, 1964. Estimate:  SFr. 1,350,000-2,250,000 (US$ 1,500,000-2,500,000)

A Magnificent diamond necklace, by Harry Winston, 1964. Estimate: SFr. 1,350,000-2,250,000 (US$ 1,500,000-2,500,000)