Tuesday’s Royal Trinket: Cullinan Blue Diamond Necklace

© The Smithsonian / NMNH Photo Services

Welcome to another Trinket Tuesday!

The Cullinan Blue Diamond Necklace was gifted by Mr. Thomas Cullinan (chairman of the Premier Mine in South Africa) to his wife Annie, around 1910. (If you’re wondering about the name, yes, this is the same mine where the British royal family received their Cullinan diamonds from.)

The Cullinan Blue Diamond Necklace’s design is typical of the Edwardian era: elegant, feminine and timeless. The Cullinan Blue Diamond pendant hangs from the double-ribbon bow. It’s a natural oval-shaped blue diamond, weighing 2.60 carat.

The necklace contains 243 round white diamonds and nine blue diamonds. The diamonds are set in rose-gold and silver. It’s also a detachable gem; it can be worn as a brooch or a necklace.

Today the Cullinan Blue Diamond Necklace is on permanent display at the National Museum of Natural History in Washington, D.C.