165 Van Cleef & Arpels Extremely desirable and very rare ruby Mystery-Set diamond yellow-gold necklace, several combinations possible, signed Van Cleef & Arpels. Circa 1980s.

Estimate: €250,000 –⁠ 500,000

Sold €286,000

Designed as an openwork band, the middle composed with a frieze of geometric patterns set with brilliant-cut and marquise shaped diamonds, centered by a detachable flower brooch paved with rubies in Mystery-Set and shouldered by pear-shaped diamonds. The flower can be easily replaced by a flower motif set with two pear-shaped and one round diamonds. Signed Van Cleef & Arpels, N.Y. 56294. Circa 1980s. Length ext: 47 cm. Width: 1.2 to 1.9 cm and the ruby flower: 3.5 cm. Total weight: 93.4 g