From left: Me&Ro’s 18k yellow gold and diamond necklace, $3,745, at Me&Ro, New York, 917.237.9215,; Stephen Webster’s silver and blue goldstone ring, $550, at Bergdorf Goodman, New York, 212.753.7300; Van Cleef & Arpels’s 18k white gold and diamond watch with aventurine and mother-of-pearl dial and satin band, $70,500, vancleef-; Glashütte Original’s 18k rose gold and diamond watch with mother-of-pearl dial and alligator band, $45,000,

The sun, moon and stars may light up the sky, but these celestial-like luminaries are a bit more attainable. Van Cleef & Arpels’s dreamy watch plays with the duality of day and night, employing discs of sapphires and diamonds that rotate under a smooth mother-of-pearl earth as time ticks by. The summer sun influences Glashütte Original’s diamond-encircled gold timepiece on an alligator band, while Me&Ro creates its own mini constellation with an 18-karat yellow gold crescent moon and star necklace. And Stephen Webster’s silver and blue goldstone ring, derived, he says, from “biker stud work, gothic stained-glass windows and glam-punk style,” is absolutely heavenly.