Crown of Queen Mary
Mary bought the Art Deco-inspired crown from Garrard & Co. herself, and hoped that it would be worn by future queens consort. It is unusual for a British crown due to having eight half-arches instead of the traditional two arches. It is 25 cm (9.8 in) tall and weighs 590 g (1.30 lb).
The silver-gilt crown has around 2,200 rose-cut and brilliant-cut diamonds, and originally contained the 105.6-carat (21.12 g) Koh-i-Noor diamond, as well as the 94.4-carat (18.88 g) Cullinan III and 63.6-carat (12.72 g) Cullinan IV. In 1914, they were all replaced with crystal models, and the arches were made detachable so that it could be worn as a circlet or open crown. Mary wore it like this after George V died in 1936.
- Keay, Anna (2011). The Crown Jewels. Thames & Hudson. p. 175. ISBN 978-0-500-51575-4.
- "Queen Mary's Crown". Royal Collection Trust. Inventory no. 31704.
- Mears, Kenneth J.; Thurley, Simon; Murphy, Claire (1994). The Crown Jewels. Historic Royal Palaces. p. 27. ASIN B000HHY1ZQ.
- Twining, Edward Francis (1960). A History of the Crown Jewels of Europe. B. T. Batsford. p. 167. ASIN B00283LZA6.