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3 Carat Marquise Cut Diamond Sidestone Engagement Rings
Looking for a beautiful 3 Carat Marquise Cut Diamond Sidestone 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/marquise/top
The Nora
Make an everlasting romance statement with our Open Band Diamond Engagement Ring. Rendered in a modern silhouette, this distinctive piece is an epitome of unmatched elegance and sophistication. Perfectly designed for women looking for unique ways to express their love, this engagement ring is where tradition meets contemporary. The open band design amplifies the brilliance of the center stone, offering an exhilarating visual delight. This diamond engagement ring is beyond ordinary. Its unique structure beautifully cradles the diamond, emanating radiant sparkles with each movement of your hand that's sure to catch everyone's attention. The additional v-shaped prong added for sharp pointed diamonds like pear, marquise, or heart cut enhances the overall beauty, making it an ideal choice for engagement rings for women ready to take a luxurious twist on their special day. Ditch the conventional style and dip your finger into the world of modern marvel with this diamond engagement ring. Its sidestone style is an incredible take on modern aesthetics, blending effortlessly with your womanly charm. The four prongs securing the center stone is a testament to its strength and solidity, symbolic of a strong bond of love that adds to its allure. Combining elegance with a unique design, shine brilliantly with this modern diamond engagement ring. Stand out from the crowd with this contemporary masterpiece that impeccably encapsulates feminine grace, making it one of the most exquisite diamond engagement rings for women who cherish the extraordinary. Read More
The Nora
Make an everlasting romance statement with our Open Band Diamond Engagement Ring. Rendered in a modern silhouette, this distinctive piece is an epitome of unmatched elegance and sophistication. Perfectly designed for women looking for unique ways to express their love, this engagement ring is where tradition meets contemporary. The open band design amplifies the brilliance of the center stone, offering an exhilarating visual delight. This diamond engagement ring is beyond ordinary. Its unique structure beautifully cradles the diamond, emanating radiant sparkles with each movement of your hand that's sure to catch everyone's attention. The additional v-shaped prong added for sharp pointed diamonds like pear, marquise, or heart cut enhances the overall beauty, making it an ideal choice for engagement rings for women ready to take a luxurious twist on their special day. Ditch the conventional style and dip your finger into the world of modern marvel with this diamond engagement ring. Its sidestone style is an incredible take on modern aesthetics, blending effortlessly with your womanly charm. The four prongs securing the center stone is a testament to its strength and solidity, symbolic of a strong bond of love that adds to its allure. Combining elegance with a unique design, shine brilliantly with this modern diamond engagement ring. Stand out from the crowd with this contemporary masterpiece that impeccably encapsulates feminine grace, making it one of the most exquisite diamond engagement rings for women who cherish the extraordinary. Read More
The Nora / 3 CTW Marquise Lab Diamonds
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$5,352.00
14kt White Gold / Marquise / Very Good | F | VS2
The Nora / 3.01 CTW Marquise Lab Diamonds
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$5,123.00
14kt White Gold / Marquise / Very Good | H | VS2
The Nora / 3.01 CTW Marquise Diamonds
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$16,186.00
14kt White Gold / Marquise / Very Good | L | SI2
The Nora / 3 CTW Marquise Lab Diamonds
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$6,132.00
14kt White Gold / Marquise / Very Good | F | VS2
The Nora / 3.01 CTW Marquise Lab Diamonds
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$5,451.00
14kt White Gold / Marquise / Very Good | H | VS2
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Looking for different ring styles or more diamonds? Shop our full collection of engagement rings.
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The Maya
Discover the epitome of allure and elegance with our Tapered Three-row Pavé Diamond Engagement Ring. Designed with engagement rings for women in mind, this exquisite piece delicately showcases a delightful trio of pavé diamonds on each side of the band, promising an unrivaled shimmer from every angle. A true embodiment of sophistication, the tapered band thoughtfully draws the viewer's gaze toward the spectacular center stone. What makes this ring truly unique is the elegant surprise diamonds nestled at the base of the center stone. Each stone adds a dash of unexpected artistry, making this piece a diamond engagement ring that stands out in a crowd. Handcrafted to perfection, this piece is sure to become a cherished heirloom, symbolizing a promise of everlasting love. To complete your wedding look, pair this engagement ring with our Masterwork Three Row Pavé Wedding Ring. Perfectly designed to complement each other, these rings form a harmonious set that resonates with grace and style. With the Tapered Three-row Pavé Diamond Engagement ring, celebrate your once-in-a-lifetime commitment with a design that's as unique and dazzling as your love story. Read More
The Maya
Discover the epitome of allure and elegance with our Tapered Three-row Pavé Diamond Engagement Ring. Designed with engagement rings for women in mind, this exquisite piece delicately showcases a delightful trio of pavé diamonds on each side of the band, promising an unrivaled shimmer from every angle. A true embodiment of sophistication, the tapered band thoughtfully draws the viewer's gaze toward the spectacular center stone. What makes this ring truly unique is the elegant surprise diamonds nestled at the base of the center stone. Each stone adds a dash of unexpected artistry, making this piece a diamond engagement ring that stands out in a crowd. Handcrafted to perfection, this piece is sure to become a cherished heirloom, symbolizing a promise of everlasting love. To complete your wedding look, pair this engagement ring with our Masterwork Three Row Pavé Wedding Ring. Perfectly designed to complement each other, these rings form a harmonious set that resonates with grace and style. With the Tapered Three-row Pavé Diamond Engagement ring, celebrate your once-in-a-lifetime commitment with a design that's as unique and dazzling as your love story. Read More
The Maya / 3 CTW Marquise Lab Diamonds
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$4,652.00
14kt White Gold / Marquise / Very Good | F | VS2
The Maya / 3.01 CTW Marquise Lab Diamonds
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$4,423.00
14kt White Gold / Marquise / Very Good | H | VS2
The Maya / 3.01 CTW Marquise Diamonds
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$15,486.00
14kt White Gold / Marquise / Very Good | L | SI2
The Maya / 3 CTW Marquise Lab Diamonds
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$5,432.00
14kt White Gold / Marquise / Very Good | F | VS2
The Maya / 3.01 CTW Marquise Lab Diamonds
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$4,751.00
14kt White Gold / Marquise / Very Good | H | VS2
Browse The Full Catalog
Looking for different ring styles or more diamonds? Shop our full collection of engagement rings.
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The Gaia
Discover the epitome of elegance with our Timeless French-set Diamond Band Engagement Ring, specifically designed with the modern woman in mind. Filled with sparkling diamonds, this unique engagement ring adds a delightful touch to the sophisticated, stylish woman's hand. This magnificent piece represents the perfect blend of class and luxury, making it one of the most trend-setting engagement rings for women. Exuding endless sparkle from French-set diamonds, this ring serves as a constant reminder of your everlasting bond. This diamond engagement ring features a low-profile design, perfect for ensuring continuous comfort while maintaining an exquisite appearance. Indulge in the celebration of love and commitment with this unique piece, specifically crafted to spark joy and symbolize a promise of forever. Match it with our Women's 0.28ctw French-set Diamond Ring and create the perfect pair of diamond engagement rings, a symbol of the everlasting journey of love. Elevate the experience of one of the most unforgettable moments in life with this Timeless French-set Diamond Band Engagement Ring, our unique, head-turning design that stands out among the run-of-the-mill options. Discover the magic of love with this piece that's set to sparkle for a lifetime. Read More
The Gaia
Discover the epitome of elegance with our Timeless French-set Diamond Band Engagement Ring, specifically designed with the modern woman in mind. Filled with sparkling diamonds, this unique engagement ring adds a delightful touch to the sophisticated, stylish woman's hand. This magnificent piece represents the perfect blend of class and luxury, making it one of the most trend-setting engagement rings for women. Exuding endless sparkle from French-set diamonds, this ring serves as a constant reminder of your everlasting bond. This diamond engagement ring features a low-profile design, perfect for ensuring continuous comfort while maintaining an exquisite appearance. Indulge in the celebration of love and commitment with this unique piece, specifically crafted to spark joy and symbolize a promise of forever. Match it with our Women's 0.28ctw French-set Diamond Ring and create the perfect pair of diamond engagement rings, a symbol of the everlasting journey of love. Elevate the experience of one of the most unforgettable moments in life with this Timeless French-set Diamond Band Engagement Ring, our unique, head-turning design that stands out among the run-of-the-mill options. Discover the magic of love with this piece that's set to sparkle for a lifetime. Read More
The Gaia / 3 CTW Marquise Lab Diamonds
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$3,295.00
14kt White Gold / Marquise / Very Good | F | VS2
The Gaia / 3.01 CTW Marquise Lab Diamonds
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$3,066.00
14kt White Gold / Marquise / Very Good | H | VS2
The Gaia / 3.01 CTW Marquise Diamonds
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$14,129.00
14kt White Gold / Marquise / Very Good | L | SI2
The Gaia / 3 CTW Marquise Lab Diamonds
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$4,075.00
14kt White Gold / Marquise / Very Good | F | VS2
The Gaia / 3.01 CTW Marquise Lab Diamonds
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$3,394.00
14kt White Gold / Marquise / Very Good | H | VS2
Browse The Full Catalog
Looking for different ring styles or more diamonds? Shop our full collection of engagement rings.
SHOP NOW

3 Carat Marquise Cut Diamond Sidestone Engagement Rings

Carat Weight

3 carat diamonds are bigger than the average engagement ring diamond and are sure to make a statement and impress your significant other. The large size of your diamond will be very noticeable and make it stand out among the others

Shape

The marquise cut, somewhat similar to oval and pear shaped diamonds, has pointed ends and elegant, curved sides. It is the diamond shape with the largest surface area of all popular cuts, which means that you can find a larger-looking diamond for the same value.

The marquise cut diamond is a great choice for an engagement ring if you are looking for a diamond that will elongate your finger. King Louis XIV of France, who wanted a new diamond shape for the woman he loved – Marquise de Pompadour - commissioned the marquise cut. It is said that he wanted the diamond to be reminiscent of her smile. Because of this, the marquise shape has very romantic connotations.

If you are looking to make your marquise cut diamond appear larger, try a halo setting. Or let this unique cut stand out in a solitaire setting.

Because the marquise cut diamond has pointed ends, it is prone to chipping. Be sure to choose a setting that will protect the pointed ends.

Ring Style

Sidestone engagement rings are one of the most popular setting styles at Ritani. This style features feature smaller diamonds in the band for added artistry and sparkle. Sidestone engagement rings pair beautifully with all diamond shapes, but look especially stunning with emerald-cut diamonds or Asscher-cut diamonds. These step-cut diamond-shapes don't sparkle much, so a diamond sidestone setting will add more sparkle to the ring. There are many different ways in which diamonds can be set into the band of an engagement ring, each creating a different look. French-set diamonds are diamonds that are raised, allowing extra light to enter the stone, and are set with tiny beads of metal. Pavé diamonds look like they are paved into the band and are set with tiny points of metal. Micropavé diamonds are set the same way, but with smaller clusters of diamonds set closer together. Channel-set diamonds are the most secure - they are held within a metal channel.

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 3 Carat Marquise Cut Diamond Sidestone Engagement Rings, reach out to us at 1-888-9RITANI or chat now.

Frequently Asked Questions

  • How much does a 3 Carat Marquise Cut Diamond Sidestone Engagement Rings cost?
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    A 3 Carat Marquise Cut Diamond Sidestone Engagement Rings can cost anywhere between $31,200 and $106,500 depending on the 4 cs and the type of setting you choose. The median price is $59,000.