The cushion-shaped brilliant-cut blue diamond ... It consists of a briolette-cut pink tourmaline, carved ruby, carved and caliber-cut onyx plaques and old and single-cut diamonds.

Rings and earrings are joined by a necklace featuring Tahitian pearls with an intriguing green hue, alongside several tourmalines, including a 23.79-carat, cushion-cut example. Treasures of the ...