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The majority of historians agree that the first record of rings officially used to mark an engagement was in 1477, when the Austrian Archduke Maximillian gave a ring to his fiancée, Mary of Burgandy, following his proposal.
Up until the 1800s, rings were in common use. Mentioned many times in Shakespeare's plays, engagement rings were frequently made of silver and were exchanged for gold rings at the wedding ceremony.
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During the Edwardian era in the 1900s, engagement rings became a widespread social custom. With the advent of the industrial revolution, national economies were on the rise and the middle class were able to afford fine jewelry. Engagement rings designed during the Edwardian era often featured diamonds in ornate and lacy platinum bands.
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During World War II, engagement rings were large and bold. These rings frequently boasted curving designs and many feminine features such as bows, ribbons and flowers. Because platinum was being used to help the war effort, gold was the metal of choice for rings during this time period.
The trend of stackable rings in different colors may have been started by Audrey Hepburn in the 1950s. Her husband, Mel Ferrer, gave her rings in both rose and yellow gold so that she could match them to her outfit.
The 1960s was the decade during which celebrities began making headlines with their engagement rings. In 1963, Elizabeth Taylor's fiancé presented her with a 33-carat diamond. Jacqueline Kennedy's diamond and emerald engagement ring helped to popularize emeralds as engagement ring gemstones.
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Princess Diana's choice of an oval sapphire ring caused the popularity of sapphires to rise during the 1980s.
From the 1990s until the present day, there has been no single dominant trend for engagement rings. Modern couples have the unprecedented opportunity to see and choose from a multitude of ring styles.
Although the styles of engagement rings vary from one year to the next, the basic look—a ring with a prominent, shimmering diamond—continues to be the most sought-after setting of all.