Jewel History: Green Stones in Favor (1896)

The earrings and necklace from the Habsburg Peridot Parure (Carlo Allegri/Getty Images)

"Green Stones in Favor"

(originally appeared in the Washington Evening Star, 27 Mar 1896)

Green stones are the fashion just now; of these, of course, first comes the emerald, for green diamonds and green sapphires are too rare and small for modern jewelry. Nothing can equal a really fine emerald -- rich, dark, velvety and glossy -- yet it is said that a flaw or fault almost always lies in the stone, and an emerald without a flaw is priceless.

The Daily Diadem: The Greville Tiara

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The Duchess of Cornwall wears the Greville Tiara during a gala dinner at the Commonwealth Heads of Government Meeting in Sri Lanka, November 2013; learn all about the tiara's history here!

Lover's Knot Tiaras: Cambridge vs Queen Mary

The Cambridge Lover's Knot Tiara (left); Queen Mary's Lover's Knot Tiara (right)

It's a familiar moment. The Duchess of Cambridge arrives at a grand white-tie event at Buckingham Palace wearing a tiara made of diamonds with suspended pearls, and social media (and the press!) goes wild: "Kate's wearing the Cambridge Lover's Knot Tiara!"

Except -- she's not! The tiara worn by Kate -- the same tiara also worn by Princess Diana, Queen Elizabeth II, and Queen Mary -- is Queen Mary's Lover's Knot Tiara. The Cambridge Lover's Knot Tiara is an entirely different tiara, owned by a noble family in Germany. Today, we're going to break down the reasons why many persistently call the tiara worn by Kate and Diana by the wrong name, including comparison photos to show the difference between the tiaras.

The Daily Diadem: The Spanish Floral Tiara

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Queen Letizia of Spain (then Princess of Asturias) wears the Spanish Floral Tiara at the wedding of Crown Princess Victoria of Sweden, June 2010; learn about the tiara's long Spanish history over here!

Royal Rubies from Van Cleef & Arpels

Carlos Alvarez/Getty Images

July babies were blessed with a particularly vibrant birthstone: the bright red ruby. Today, we're looking at a selection of royal ruby pieces created by one of the world's most famous jewelry firms, Van Cleef and Arpels.