crown jewel

noun

1

crown jewels plural : the jewels (such as the crown and scepter) belonging to a sovereign's regalia

2

: the most attractive or valuable one of a collection or group

Synonyms of crown jewel

• jewel
• treasure
• trophy

Examples of crown jewel in a Sentence

The painting is the crown jewel of the museum's collection.

one of the company's crown jewels

Recent Examples on the Web

The crime followed a series of high-profile heists at major European museums, including the theft in October of French crown jewels and other items worth 88 million euros ($101 million) from the Louvre in Paris. — ABC News, 14 Aug. 2026

The crime followed a series of high-profile heists at major European museums, including the theft of French crown jewels and other items from the Louvre in Paris. — CBS News, 14 Aug. 2026

Leaders across Europe, Asia and North America rejected the deal, accusing Infantino of trying to quietly sell off the sport's crown jewels. — Alejandro Avila Outkick, FOXNews.com, 11 Aug. 2026

Mountain View may well have run out of patience and wants a tighter grip on its AI crown jewel. — Beatrice Nolan, Fortune, 10 Aug. 2026

Word History

First Known Use

1643, in the meaning defined at sense 1

Rhymes for crown jewel

• accrual
• nonfuel
• refuel
• renewal
• biofuel
• contextual
• nonrenewal
• nonsexual
• unusual
• cruel
• dual
• duel