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0.5 Carat Round Cut Diamond Engagement Rings
Looking for a beautiful 0.5 Carat Round Cut Diamond Engagement Ring? We have done all the hard work for you. We have carefully curated some of our best selling settings and paired them with some of our best value diamonds. Don't find what you're looking for? Check out our full engagement ring collection and choose from over 250,000 diamonds.
14kt white gold/18kt white gold/platinum/round/top
Modern 6-Prong Solitaire Engagement Ring
A rounded 2mm smooth band raises your round-cut diamond high off of your finger. Six prongs secure your diamond. Both elegant and classy.
Modern 6-Prong Solitaire Engagement Ring
A rounded 2mm smooth band raises your round-cut diamond high off of your finger. Six prongs secure your diamond. Both elegant and classy.
Modern 6-Prong Solitaire Engagement Ring / 0.55 Carat Round Diamond
$1,368.00 $1,441.00
14kt White Gold / Round / Ideal | F | SI1
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Modern 6-Prong Solitaire Engagement Ring / 0.51 Carat Round Diamond
$1,314.00 $1,387.00
14kt White Gold / Round / Ideal | H | VS2
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Modern 6-Prong Solitaire Engagement Ring / 0.55 Carat Round Diamond
$969.00 $1,042.00
14kt White Gold / Round / Ideal | J | SI1
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Modern 6-Prong Solitaire Engagement Ring / 0.63 Carat Round Lab Diamond
$610.00 $683.00
14kt White Gold / Round / Ideal | F | VS2
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Modern 6-Prong Solitaire Engagement Ring / 0.50 Carat Round Diamond
$1,102.00 $1,175.00
14kt White Gold / Round / Ideal | H | SI1
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French-set Diamond Band Engagement Ring With Surprise Diamonds
For a sleek and elegant look, this classic diamond engagement ring features a row of sparkling French-set diamonds. The thin band makes it perfect for stacking with other rings and lets the center stone stand out. Bezel-set surprise diamonds are beautifully set into the side of the setting to highlight your prong-set center diamond. With every move, this timeless ring creates brilliant sparkle.
French-set Diamond Band Engagement Ring With Surprise Diamonds
For a sleek and elegant look, this classic diamond engagement ring features a row of sparkling French-set diamonds. The thin band makes it perfect for stacking with other rings and lets the center stone stand out. Bezel-set surprise diamonds are beautifully set into the side of the setting to highlight your prong-set center diamond. With every move, this timeless ring creates brilliant sparkle.
French-set Diamond Band Engagement Ring With Surprise Diamonds / 0.55 Carat Round Diamond
$2,053.00 $2,355.00
14kt White Gold / Round / Ideal | F | SI1
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French-set Diamond Band Engagement Ring With Surprise Diamonds / 0.51 Carat Round Diamond
$1,999.00 $2,301.00
14kt White Gold / Round / Ideal | H | VS2
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French-set Diamond Band Engagement Ring With Surprise Diamonds / 0.55 Carat Round Diamond
$1,654.00 $1,956.00
14kt White Gold / Round / Ideal | J | SI1
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French-set Diamond Band Engagement Ring With Surprise Diamonds / 0.63 Carat Round Lab Diamond
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French-set Diamond Band Engagement Ring With Surprise Diamonds / 0.50 Carat Round Diamond
$1,787.00 $2,089.00
14kt White Gold / Round / Ideal | H | SI1
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Timeless French-set Diamond Band Engagement Ring
French-set diamonds line the band of this low-profile engagement ring for endless sparkle.   Looking for a matching wedding band? This engagement ring pairs perfectly with our Women's 0.28ctw French-set Diamond Ring.
Timeless French-set Diamond Band Engagement Ring
French-set diamonds line the band of this low-profile engagement ring for endless sparkle.   Looking for a matching wedding band? This engagement ring pairs perfectly with our Women's 0.28ctw French-set Diamond Ring.
Timeless French-set Diamond Band Engagement Ring / 0.55 Carat Round Diamond
$2,152.00 $2,487.00
14kt White Gold / Round / Ideal | F | SI1
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Timeless French-set Diamond Band Engagement Ring / 0.51 Carat Round Diamond
$2,098.00 $2,433.00
14kt White Gold / Round / Ideal | H | VS2
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Timeless French-set Diamond Band Engagement Ring / 0.55 Carat Round Diamond
$1,753.00 $2,088.00
14kt White Gold / Round / Ideal | J | SI1
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Timeless French-set Diamond Band Engagement Ring / 0.63 Carat Round Lab Diamond
$1,394.00 $1,729.00
14kt White Gold / Round / Ideal | F | VS2
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Timeless French-set Diamond Band Engagement Ring / 0.50 Carat Round Diamond
$1,886.00 $2,221.00
14kt White Gold / Round / Ideal | H | SI1
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4-Prong Solitaire Knife-Edge Engagement Ring
This setting is romantic and graceful in its simplicity. Four prongs secure the single diamond and raise it high off of the finger. The knife-edge band creates reflective angles for maximum shine and sparkle. A beautiful and classic representation of your eternal love. Contact customer service to accommodate other center stone shapes.
4-Prong Solitaire Knife-Edge Engagement Ring
This setting is romantic and graceful in its simplicity. Four prongs secure the single diamond and raise it high off of the finger. The knife-edge band creates reflective angles for maximum shine and sparkle. A beautiful and classic representation of your eternal love. Contact customer service to accommodate other center stone shapes.
4-Prong Solitaire Knife-Edge Engagement Ring / 0.55 Carat Round Diamond
$1,360.00 $1,431.00
14kt White Gold / Round / Ideal | F | SI1
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4-Prong Solitaire Knife-Edge Engagement Ring / 0.51 Carat Round Diamond
$1,306.00 $1,377.00
14kt White Gold / Round / Ideal | H | VS2
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4-Prong Solitaire Knife-Edge Engagement Ring / 0.55 Carat Round Diamond
$961.00 $1,032.00
14kt White Gold / Round / Ideal | J | SI1
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4-Prong Solitaire Knife-Edge Engagement Ring / 0.63 Carat Round Lab Diamond
$602.00 $673.00
14kt White Gold / Round / Ideal | F | VS2
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4-Prong Solitaire Knife-Edge Engagement Ring / 0.50 Carat Round Diamond
$1,094.00 $1,165.00
14kt White Gold / Round / Ideal | H | SI1
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Looking for different ring styles or more diamonds? Shop our full collection of engagement rings.
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Petite 6-Prong Knife-Edge Solitaire Engagement Ring
The simple design of this engagement ring showcases the brilliant sparkle of your diamond by raising it high off the band. Six prongs securely hold your diamond and the slender 1.65mm band has a reflective, smooth knife-edge that highlights the beautiful shine of the metal. This classic design beautifully represents the timelessness of your love. 
Petite 6-Prong Knife-Edge Solitaire Engagement Ring
The simple design of this engagement ring showcases the brilliant sparkle of your diamond by raising it high off the band. Six prongs securely hold your diamond and the slender 1.65mm band has a reflective, smooth knife-edge that highlights the beautiful shine of the metal. This classic design beautifully represents the timelessness of your love. 
Petite 6-Prong Knife-Edge Solitaire Engagement Ring / 0.55 Carat Round Diamond
$1,368.00 $1,441.00
14kt White Gold / Round / Ideal | F | SI1
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Petite 6-Prong Knife-Edge Solitaire Engagement Ring / 0.51 Carat Round Diamond
$1,314.00 $1,387.00
14kt White Gold / Round / Ideal | H | VS2
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Petite 6-Prong Knife-Edge Solitaire Engagement Ring / 0.55 Carat Round Diamond
$969.00 $1,042.00
14kt White Gold / Round / Ideal | J | SI1
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Petite 6-Prong Knife-Edge Solitaire Engagement Ring / 0.63 Carat Round Lab Diamond
$610.00 $683.00
14kt White Gold / Round / Ideal | F | VS2
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Petite 6-Prong Knife-Edge Solitaire Engagement Ring / 0.50 Carat Round Diamond
$1,102.00 $1,175.00
14kt White Gold / Round / Ideal | H | SI1
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Browse The Full Catalog
Looking for different ring styles or more diamonds? Shop our full collection of engagement rings.
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0.5 Carat Round Cut Diamond Engagement Rings

Carat Weight

0.5 carat diamonds are great for diamond earrings and can also be used to enhance your engagement ring.

Shape

Round cut diamonds (also called brilliant-cut diamonds) are revered for their classic shape and incredible sparkle. Cut with 58 facets — or 57, if there is no culet — the round shape was designed to produce as much sparkle as possible. As sparkle is what many people are looking for when they buy a diamond, round cuts are immensely popular.

60% of the diamonds in our inventory are round-shaped, making it easy for you to find the right one for your needs. Not only are round cut diamonds the most sparkly, but they are also the most popular diamond shape. However, because they are the most sparkly and the most popular, this makes them the most expensive diamond shape.

Round cut diamonds are perfect for custom jewelry, such as earrings and pendants. To make your round cut diamond appear even larger, choose a halo setting. Or let your round cut diamond stand out on its own in a solitaire setting.

Earth Grown Diamonds

Earth grown diamonds are mined from deep under the earth's surface where they have lain dormant for millions of years. When you hold an earth grown diamond, reflect on the immense journey this diamond has taken and the history it has endured.

A diamond starts out in the lowly form of graphite, such as you might find in the tip of your pencil. Over the course of hundereds of millions of years, the immense pressure and temperature produced deep inside the earth rearrange the carbon atoms into a crystal structure.

Then miners dig deep tunnels under the earth and collect the rough diamonds. The rough diamond looks nothing like the sparkly diamond you are holding. It has an irregular shape, is very dirty and looks dull. The diamond is then cleaned, cut into it's desired shape, and finally polished into the beautiful diamond you are now holding!

All Ritani earth grown diamonds are certified by either the AGS or GIA – the two most respected independent grading labs in the world.

If you need help selecting your 0.5 Carat Round Cut Diamond Engagement Rings, reach out to us at 1-888-9RITANI or chat now.

Frequently Asked Questions

  • How much does a 0.5 Carat Round Cut Diamond Engagement Rings cost?
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    A 0.5 Carat Round Cut Diamond Engagement Rings can cost anywhere between $620 and $12,300 depending on the 4 cs and the type of setting you choose. The median price is $2,800.