Piaget now has seven references with dials of blue aventurine glass, in prices ranging from $27,200 for a Limelight Gala watch to $146,000 for an Altiplano Tourbillion.

Aventurine glass, resembling starry night skies, is a stunning material for watch dials and is becoming more accessible in luxury watches.

Film producer Kerianne Flynn brought a six-figure watch as her companion to Blue Origin's first all-female space flight on Monday. She wore the Lady Arpels Planétarium timepiece from Van Cleef ...