These may be the most breathtaking royal engagement rings of all time

After Prince Harry and Meghan Markle announced their engagement on Monday morning -- and stunned with a gorgeous solitaire surrounded by Princess Diana's diamonds -- we couldn't help but reminisce about other buzzworthy royal rocks.

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Royal engagement rings
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Royal engagement rings
Prince Rainier III of Monaco announced their engagement in January 1956. The royal proposed to the actress with a stunning Cartier eternity band. 
The 10.5-carat diamond, surrounded by two baguettes was the second ring given by Prince Rainier. The first ring was a simple eternity band embellished with diamonds and rubies.  
The simple and single solitaire was a break from the traditional gold bands many brides sport in Sweden. However, on her wedding day, Victoria was presented with an additional diamond wedding band. 

Daniel Westling and Crown Princess Victoria of Sweden announced their engagement on February 24, 2009 in Stockholm, Sweden. 

Prince Philip proposed in 1947 with a simple 3-carat solitaire surrounded by 5 diamonds on each side. 
The ring featured diamonds taken from the tiara of Philip's mother, Princess Andrew of Greece. It was reportedly far too large for Elizabeth, who had it resized quickly to announce her engagement. 

Prince Charles and Lady Diana Spencer announced their engagement in London on Feb. 24, 1981. He proposed with a 12-carat blue sapphire ring that was surrounded by 14 solitaire diamonds, made by famed jewelers Garrad. 

It cost $36,000 to make at the time. 

In 2010, Prince William proposed to Kate Middleton with the same ring.

The blue sapphire and diamond ring is reportedly worth $500,000 today. 

Crown Prince Felipe of Spain proposed to Letizia Ortiz on November 6, 2003. 

The non-traditional eternity band featured 16 diamond baguettes and a white gold trim. It was designed by Suarez jewelers.

After the wedding, Letizia swapped the ring for a simpler band. 

Swedish Prince Carl Philip announced his engagement to Sofia in 2014 after four years of dating. He proposed with an 'unusual' ring that estimated over £10,073. 
The center stone is surrounded by a halo and features two split diamond eternity bands. 

Netherland's Queen Maxima and King Willem-Alexander got engaged in 2001 after two years of dating. The ring features an unusual color and shape. 

The oval-shaped orange diamond is surrounded by two additional teardrop diamonds. The color is symbolic of the color of the Netherlands. 

Experts valued the stone anywhere from £15,000 and £150,000, says The Daily Mail

Prince Andrew, youngest son of Queen Elizabeth and Prince Philip, proposed to Sarah Ferguson in 1986 with a ring by the same designer as Princess Diana's ring. The two had reportedly known each other since they were young children but divorced in 1996. 

The Duke proposed with an unusual ring -- an oval Burmese ruby flanked by ten diamonds arranged in a floral shape. The ring sits on a thin yellow and white band.

Ferguson's ring reportedly set the trend for ruby engagement rings throughout Britain. 

Prince Albert of Monaco proposed to Princess Charlene in 2010 with a stunning cut valued at over £50,000.
The 3-carat pear-shaped ring was designed by jewelers Maison Repossi and is embellished on both sides with white diamonds. 
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From Princess Grace of Monaco to Queen Letizia, these stunning engagement rings have brought all our fairy tale dreams to life. Whether it's a family heirloom or a second-round 10-carat Cartier, a simple diamond eternity band or a fiery auburn ruby the royals sure know how to do an engagement.

Scroll through above to see our favorite royal rocks fit for a princess!

Related: We've fallen in love with these unique rings:

16 PHOTOS
Engagement-worthy rings under $1500
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Engagement-worthy rings under $1500
"Bea Arrow Ring," 14K yellow gold, rutilated quartz, champagne diamonds, $ 1,350, Anna Sheffield
"Wood Nymph" ring with rose-cut pink sapphire in 18K yellow gold, $1,100, Megan Thorne
Style 42029, petite diamond engagement ring in 14k white gold, $650 (setting only; under $1,500 with up to 0.5 carat emerald-cut diamond), Blue Nile
Blue sapphire 1.85 carat ring in a deep ocean blue with signature claw style in solid 14k green gold, $1,100, Lauren Wolf available at Catbird
The Center of My Universe diamond ring set in 18k white gold 0.40 ctw, price upon request, Forevermark available at Day's Jewelers
"Kira" 14K rose gold engagement ring with a .15ct trilliant-cut white diamond, $1,150, Digby & Iona
Style LEF071.11, emerald-shaped sapphire engagement ring with diamond halo set in 14kt white gold, suggested retail price $1,475, Leo Ingwer
Style 19958721, 1/2CT white gold princess-cut classic-solitaire engagement ring, IJK/I2 14K, $1,199, Zales
"Lexie" emerald engagement ring with 2 3-point diamonds set in 14k yellow gold, $980, Jennie Kwon available at Catbird
"Hazeline Solitaire" 0.13ct champagne colored diamond with pavé-set white diamond accents in 14kt rose gold setting and stone, $ 1,500, Anna Sheffield
"Ariel" ring, three brilliant diamonds set in 18K yellow and white gold, $ 1,200, Marian Maurer available at Catbird
"Sapphire Cluster Ring," 18K recycled gold, satin finish, $950, Adel Chefridi
"Atreyu" black diamond ring, $1,180, Digby & Iona
Forevermark setting diamond engagement ring set in 18K white gold 0.4 ctw, price upon request, Forevermark available at Day's Jewelers
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