Van Cleef & Arpels unveiled the Écume Mystérieuse necklace in its 2024 “Treasure Island” High Jewelry collection, a masterful creation that evokes the blue ocean of an adventurous voyage. Through the use of invisible-set sapphires, the Maison recreates the depth and movement of the sea, while round brilliant-cut diamonds depict poetic white waves, resulting in a design that feels both pure and lyrical.
The “Mystery Set” (Serti Mystérieux) is one of Van Cleef & Arpels’ most iconic techniques, celebrated for its extraordinary precision. This intricate process allows gemstones to be set seamlessly without any visible prongs, creating a smooth, continuous surface of color. In this piece, the sapphires are individually custom-cut to ensure perfect harmony in hue and shape, forming a rich, deep blue expanse that captures the viewer’s imagination.

Above this sapphire sea, white gold lines overlap to form sculpted waves, pavé-set with round brilliant-cut diamonds that shimmer with flowing light. Finally, scattered diamonds and sapphires of varying sizes adorn the crest, reminiscent of spray and foam stirred by the waves, lending the majestic ocean its final, captivating touch of life and brilliance.



