This rich, royal color—particularly striking when paired with similar shades—is back in the spotlight thanks to Pantone.

1 / Rose-cut oval ruby necklace with crystal in 18k white gold; $40,000; Butani; info@butani.com; butani.com

2 / Tulip ring with amethyst, green tourmaline, and rose-cut diamonds in
18k yellow and white gold; $41,000; Gilan; 917-213-0349; gilan.com

3 / Ring with purple sapphires in 22k gold and silver; $5,280; Arman Sarkisyan; 818-808-0112; armansarkisyan.com

4 / Earrings with lab-grown rubies and ombré amethyst in 18k black gold and rhodium vermeil; £1,590 ($2,200); Anabela Chan; sales@anabelachan.com; anabelachan.com

5 / Earrings with purple jade, black jade, sugilite, tanzanite, and diamonds in 18k rose gold; $9,900; Wendy Yue; 646-603-6946; wendyyue.com