The large stone will be offered at its June sale along with a selection of secondary-type rubies from a new area of the Montepuez mine.
Watch: A Jewelry Historian on Her Favorite Royal Jewels
Helen Molesworth shares the stories behind some of most notable royal jewels that have come up for auction, like Princess Margaret’s tiara.

Add a royal or noble provenance, and interest will only increase.
In her time as a jewelry specialist at various auction houses and a jewelry historian, Helen Molesworth has researched, handled and valued a number of notable royal jewels.
In the latest episode of “My Next Question,” National Jeweler’s webinar series, Molesworth talked about how royal jewels are valued ahead of auction, her personal favorites, how loose stones with royal stories differ, and so much more.
The full session can be watched below.
Join us next Tuesday, Oct. 27 at 2 p.m. EDT, when Senior Editor Ashley Davis will interview Elizabeth Potts of The Moonstoned and Mia Graffam of Fare Well Fine Jewelry in “The Online Vintage Jewelry Boom: How a New Generation Sells Antiques on Instagram.”
For more information or to register, visit NationalJeweler.com/webinars.
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