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38 Best Square Diamond Engagement Rings: The Latest in Modern Elegance

This guide reviews the best square diamond engagement rings, comparing styles, sizes, and quality to help you find the perfect proposal ring.

Selecting the perfect engagement ring can be a delightful yet daunting task, especially when you're drawn to the distinctive silhouette of a square diamond. These modern classics combine brilliance with geometric precision, offering a stunning alternative to traditional round cuts. Our detailed guide evaluates the most remarkable square diamond engagement rings available today, helping you find the perfect balance of style and sophistication.

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Reviews

Jeenmata Square Diamond Double Halo Engagement Ring Set

Jeenmata Square Diamond Double Halo Engagement Ring Set | Image

This 10K white gold ring features a half-carat princess cut diamond at its center, surrounded by a double halo of smaller diamonds that create the illusion of a larger stone. The twisted band adds a vintage touch to the design, making it both elegant and distinctive. While some customers have noted that the ring appears smaller in person than in pictures and that the gold color varies from yellow to rose, many appreciate its visual appeal and the way it sparkles with multiple stones.

6 Carat Square Diamond Engagement Ring

6 Carat Square Diamond Engagement Ring | Image

A striking centerpiece, this square diamond ring takes traditional elegance to new heights. The 6-carat stone sparkles brilliantly at the top, with additional diamonds surrounding it for extra brilliance. You can choose from white, yellow, rose gold, or platinum to find the perfect match for your style.

Square 1.6ct Diamond Engagement Ring

Square 1.6ct Diamond Engagement Ring | Image

In a world where every sparkle demands attention, this 1.6 carat diamond engagement ring stands out as a testament to your love. The 10K yellow-white gold ring captures the brilliance of natural diamonds, with a stunning square center frame that draws the eye. Handcrafted details, like the sparkle-tracing shank, make this more than a ring - it's a declaration of your commitment, crafted to last a lifetime.

3 Carat White Gold Square Cluster Engagement Ring

3 Carat White Gold Square Cluster Engagement Ring | Image

This 3-carat white gold engagement ring features a square diamond cluster design, perfect for a memorable proposal. The H-I color and I2 clarity give it a stunning presence without compromise. Available in sizes 6 to 9, it's a beautiful piece that's sure to make her say "yes. "

Kay Outlet Princess-Cut Quad Diamond Engagement Ring

Kay Outlet Princess-Cut Quad Diamond Engagement Ring | Image

This elegant white gold ring captures a couple's love story through its detailed diamond design. The centerpiece features four princess-cut diamonds framed by a cushion-shaped halo, while the shank sparkles with additional round-cut diamonds. The total diamond weight adds up to 1/2 carat, creating a sophisticated and memorable engagement ring.

Square 1.6 ct Diamond Engagement Ring

Square 1.6 ct Diamond Engagement Ring | Image

This classic square diamond engagement ring exudes elegance with its 1.6 carat total weight of natural diamonds, expertly set in 10k gold. The design features a striking cluster of prong-set diamonds in the center, surrounded by sparkling rows that trace halfway down the shank. Available in three lovely gold finishes—rose, yellow, or white—the ring's 12mm size and 6-gram weight make it a substantial and meaningful symbol of your love.

Borsheims 18K White Gold Square Diamond Solitaire Engagement Ring

Borsheims 18K White Gold Square Diamond Solitaire Engagement Ring | Image

This elegant Borsheims engagement ring showcases a 1.77-carat Signature Square diamond in 18K white gold. The distinctive cut of this proprietary diamond draws attention to its exceptional fire and brilliance, thanks to the unique star-cut design around the culet. The SI1 clarity stone adds a touch of extra sparkle to this classic piece.

Ken & Dana Design Lab Aurora Engagement Ring

Ken & Dana Design Lab Aurora Engagement Ring | Image

This elegant engagement ring features a wave-like band that adds a modern touch to the classic square diamond design. The recycled platinum setting ensures both durability and environmental consciousness. While it's a striking piece, its relatively simple profile makes it versatile enough to wear every day.

1 Carat Princess Cut Diamond Engagement Ring

1 Carat Princess Cut Diamond Engagement Ring | Image

This elegant 10K yellow gold ring features a 1-carat princess-cut diamond at its center, surrounded by a double halo of smaller diamonds and a twisted band design. While some may find it a bit dainty, its vintage-inspired charm and classic white gold tones make it a lovely alternative to traditional diamond rings. The total diamond weight of 1 carat really shines through in the well-placed, pave-set stones that catch the light throughout the band.

Square Solitaire Diamond Engagement Ring

Square Solitaire Diamond Engagement Ring | Image

This sustainable engagement ring features a lab-grown diamond in a classic square design, set in either 14k, 18k gold, or 950 platinum. The recycled metal and ethical diamond sourcing align with modern, conscious jewelry choices.

Princess Cut Engagement Ring

Princess Cut Engagement Ring | Image

When you think of classic engagement rings, this one checks all the boxes with its elegant Princess Cut center stone and sparkling diamond halo. At 10.5mm on every side, it's a showstopper that catches the light beautifully. The GIA-certified diamond quality means you're getting a stunning stone that's a cut above the rest.

14K White Gold Ideal Square Diamond Engagement Ring

14K White Gold Ideal Square Diamond Engagement Ring | Image

This beautiful ring combines an ideal square diamond center piece with a stunning array of baguette and round diamonds along the sides. The platinum band adds an extra touch of elegance to this custom-designed engagement ring.

All Natural .45ctw Square Diamond Engagement Ring

All Natural .45ctw Square Diamond Engagement Ring | Image

This elegant 14K white gold ring features an all-natural diamond centerpiece, with smaller diamonds forming a double halo around it. The square-cut design creates a clean, modern look that's sure to stand out.

De Beers Forevermark Square Ideal Cut Engagement Ring (3/4ct tw)

De Beers Forevermark Square Ideal Cut Engagement Ring (3/4ct tw) | Image

This De Beers Forevermark diamond engagement ring features 27 certified eco-responsible stones set in 14kt white gold. The centerpiece is a half-carat ideal cut diamond, with the entire piece totaling three-quarters of a carat. The ring is backed by the brand's commitment to ethical sourcing and social initiatives.

Simply Vera Vera Wang 1 Carat Diamond Engagement Ring

Simply Vera Vera Wang 1 Carat Diamond Engagement Ring | Image

This Simply Vera Vera Wang engagement ring captures attention with its square halo design and certified diamond center stone. The 14k white gold setting, rhodium-plated for added shine, gently cradles the 1/3 carat certified diamond while eight smaller diamonds form the halo. The overall diamond weight reaches 1 carat, creating a stunningly sophisticated piece that's both elegant and classic.

Square Halo Engagement Ring

Square Halo Engagement Ring | Image

This USA-made engagement ring lets you choose the perfect center diamond while the expertly set white gold prongs hold 28 sparkling round diamonds in a stunning square halo. The 0.48ctw total diamond weight adds serious shine without overwhelming the centerpiece. The precision craftsmanship is clear in every curve and facet, though you might initially feel like you're getting more bling than the actual diamond size suggests.

14K White Gold Square Princess Cut Diamond Ring

14K White Gold Square Princess Cut Diamond Ring | Image

This delicate 14K white gold ring showcases a sparkling 0.16 carat princess-cut diamond, set diagonally in a elegantly narrow bezel. The three-millimeter gemstone displays impressive clarity despite its smaller size, while the slim two-millimeter band keeps the design understated yet refined. The piece exudes classic elegance suitable for both engagement and promise ring occasions.

Zales 4 Ct. T.W. Square Diamond Engagement Ring

Zales 4 Ct. T.W. Square Diamond Engagement Ring | Image

This 14K white gold engagement ring features a striking 3 carat princess-cut lab-created diamond, flanked by two 3/8 carat round diamonds on either side. The center stone is framed by smaller round diamonds beneath and along the twist shank, creating a elegant and eye-catching design.

Stella Grace Square Cut Moissanite Engagement Ring

Stella Grace Square Cut Moissanite Engagement Ring | Image

This 14k white gold ring captures attention with its square-cut, lab-created moissanite center stone, while diamond side stones add a sparkle-filled frame. The polished finish gives it that extra shine. At 6, it's a size that fits comfortably, though the I1-I2 clarity and GI color grade are worth noting.

Certified Princess-Cut Diamond Engagement Ring

Certified Princess-Cut Diamond Engagement Ring | Image

When you think about popping the question, this dazzling ring is like finding the perfect match for your fiancée's hand. The centerpiece is a brilliant 1-carat princess-cut diamond that sparkles like crazy, surrounded by smaller round diamonds that add that amazing sparkle you know she loves. It's all set in shiny platinum, making it feel both elegant and timeless. Plus, you get the peace of mind of knowing each diamond is independently graded, so you can be sure of the quality that's been passed down through generations.

Diamond Square Cluster Engagement Ring

Diamond Square Cluster Engagement Ring | Image

This 14K gold-plated sterling silver ring featuring a diamond square cluster design has received mixed reviews. Some customers praise its visual appeal and durability, while others report quality issues like band breakage and tarnishing. The combination of round and baguette diamonds creates a sparkly centerpiece that's both elegant and distinctive.

1.5 ct Princess Cut Diamond Engagement Ring in 14K White Gold

1.5 ct Princess Cut Diamond Engagement Ring in 14K White Gold | Image

This elegant engagement ring features a shining 1 1/2 carat princess-cut diamond in the center, beautifully surrounded by smaller princess-cut diamonds that add extra sparkle. The 14K white gold band has elegant gold accents shaping its sides, creating a sophisticated and timeless piece.

Stella Grace 2 Ct. T.W. Square Cut Lab-Created Moissanite Engagement Ring

Stella Grace 2 Ct. T.W. Square Cut Lab-Created Moissanite Engagement Ring | Image

This elegant engagement ring pairs a substantial lab-created moissanite center stone with sparkling diamond accents. The white gold setting gives it a polished look that's sure to catch the light. While the diamond equivalent weight adds up to 2 carats, the total diamond weight is a more modest 1/4 carat, making it a beautifully detailed piece that won't break the bank.

18K Rose Gold Square Diamond Engagement Ring

18K Rose Gold Square Diamond Engagement Ring | Image

This elegant engagement ring combines a stunning 4-carat square cushion lab-grown diamond with three smaller round and trillion-cut lab-grown diamonds set in 18k rose gold. The 2.2mm band adds a touch of width and style to this modern three-stone design. At 0.8 carats total weight, the surrounding diamonds complement the centerpiece without overpowering it.

GIA Certified 2.00 Carat Square Emerald Cut Diamond Engagement Ring

GIA Certified 2.00 Carat Square Emerald Cut Diamond Engagement Ring | Image

This one-of-a-kind platinum engagement ring, crafted by H&H Jewels, captures attention with its striking 2.00 carat square emerald cut diamond center stone. The piece shines with additional 0.75 carat Carre cut diamonds channel-set along the shank, while 0.08 carat pave-set diamonds add subtle sparkle to the ring's elegant design. The ring, which currently sizes to a 6.25 US, pairs vintage charm with modern sophistication.

Square Diamond White Gold Engagement Ring

Square Diamond White Gold Engagement Ring | Image

This gorgeous ring combines a classic square design with the brilliance of 1.70 carats of white diamonds, all set in elegant 18K white gold. The SI-I1 clarity gives it just the right amount of subtleCharacter, while the 4.5mm setting makes it a stand-out piece for any special occasion.

Princess Diamond Square Halo Ring

Princess Diamond Square Halo Ring | Image

This elegant 14K white gold ring features a sparkling princess-cut diamond in the center, weighing 0.50 carats and rated G for color and SI clarity. The ring adds brilliance with additional round diamonds surrounding the center stone, totalling 0.33 carats. The SI3-I1 clarity of the accent diamonds adds visual interest without compromising the ring's overall brilliance.

Zales 3/4 CT. Lab-Created Diamond Solitaire Engagement Ring

Zales 3/4 CT. Lab-Created Diamond Solitaire Engagement Ring | Image

This modern engagement ring pairs a 3/4 carat lab-created diamond with a sleek 14K white gold band. The diamond sits in a distinctive tilted square frame, while the polished tapered shank adds a subtle touch of elegance. The inclusion of rhodium plating helps maintain the ring's bright white finish over time.

14K White Gold Square Cut Diamond Bridal Set

14K White Gold Square Cut Diamond Bridal Set | Image

Crafted in 14k white gold, this elegant bridal set combines a brilliant round diamond center with sparkling princess cuts. The attention to detail shows in the high-quality SI1 clarity, G color diamonds that total 2.20 carats, including the center stone. You can choose any size center diamond to create the perfect engagement ring.

Lang Collection 1.54 Carat Square Emerald Cut Diamond Ring

Lang Collection 1.54 Carat Square Emerald Cut Diamond Ring | Image

The Lang Collection diamond ring features a 1.54-carat square emerald-cut stone, with trio accents and milled edges, set in 18-karat yellow gold. At just 2.4 grams, the ring feels surprisingly light on your finger, though the 1/4-inch length might be too long for some tastes.

14K Yellow Gold Square Diamond Engagement Ring

14K Yellow Gold Square Diamond Engagement Ring | Image

This stunning 14K yellow gold engagement ring showcases a magnificent 1.82ct square diamond, set in a distinctive 7W/10.5 size that's designed to fit both him and her. The 9.2gr ring, available for in-store pickup in our Doral location, represents a sophisticated choice for those seeking a classic piece with a contemporary twist.

0.75 Carat Princess Cut Diamond Engagement Ring

0.75 Carat Princess Cut Diamond Engagement Ring | Image

At first glance, you might be surprised by how much sparkle this ring packs for its price point. The 0.75 carat princess cut diamond is framed by smaller round diamonds that dance around it, while delicate ribbons of metal wrap around the sides of the band. The result is a modern, elegant look that catches the light beautifully.

Natalie K 18K White Gold Square Halo DiamondRing

Natalie K 18K White Gold Square Halo DiamondRing | Image

This elegant 18k white gold ring features a crisp square diamond halo surrounding a separate center stone, with prong-set white diamonds adorning the split shank band. The precision craftsmanship and sparkling white gold design make it a distinctive choice for an engagement ring.

Kay Outlet Neil Lane Artistry 2 ct tw Princess Cut Lab Diamond Engagement Ring

Kay Outlet Neil Lane Artistry 2 ct tw Princess Cut Lab Diamond Engagement Ring | Image

This lab-created diamond engagement ring from Neil Lane Artistry features a sparkling 1 1/2-carat princess-cut center stone, surrounded by smaller round diamonds and detailed milgrain accents in 14K white gold. The total diamond weight comes in at 2 carats, making it a glamorous choice for those who prefer conflict-free, earth-friendly jewelry. The square-cut centerpiece really shines, though we'd love to see some real customer reviews to hear more about its details.

Square Diamond Engagement Ring

Square Diamond Engagement Ring | Image

The elegant milgrain finish on this white gold ring adds an extra touch of sophistication to the sparkling princess cut diamond, while the 20 pave set round diamonds really make it shine. You'll love how the intricate filigree shank catches the light as you move. The 3/8 carat center stone is beautifully complemented by the total 3/4 carat diamond weight.

GIA Certified Princess Cut Engagement Ring

GIA Certified Princess Cut Engagement Ring | Image

This elegant engagement ring pairs a 0.71ct GIA-certified princess cut diamond with two matching side stones, bringing the total weight to 0.97ct. The solid 14k white gold setting showcases the diamond's G color grade and SI1 clarity, with the center stone measuring 6mm square. The high-quality construction combines brilliance and durability for a timeless piece.

1/3 Carat T.W. Square Diamond 10kt White Gold Engagement Ring

1/3 Carat T.W. Square Diamond 10kt White Gold Engagement Ring | Image

This charming engagement ring packs a major sparkle punch with its 1/3 carat total diamond weight. The elegant square design features intricate micro-pave setting details and a sparkling diamond halo, while the slim white gold band adds a modern touch. While it's gotten mixed reviews from its wearers, with some reporting durability issues, many still fall in love with its elegant design and brilliant sparkle.

Elegant 10K White Gold Diamond Engagement Ring

Elegant 10K White Gold Diamond Engagement Ring | Image

This elegant ring combines a 1-carat princess cut diamond with a twisted band and double halo design, set in 10K white gold. The antique-style piece features pave-set diamonds that catch the light beautifully. Whether you're shopping for an engagement ring or just adding to your collection, it's a charming and distinctive choice that's surprisingly affordable for its quality and craftsmanship.

Buyer's Guide

Square diamond engagement rings combine the brilliance of classic diamonds with the unique appeal of geometric design. These rings offer a modern twist on traditional engagement jewelry while maintaining the timeless quality that makes diamonds so special.

Stone Quality and Characteristics

When selecting a square diamond, prioritize the four Cs: cut, color, clarity, and carat weight. Look for a cut grade of very good or higher to ensure maximum brilliance. The color should be as close to colorless (D-F) as possible, though G-H grades are still excellent. Clarity should be at least SI2 to maintain transparency while keeping costs manageable.

Setting and Style Elements

The setting style can significantly impact the ring's appearance and durability. Four-prong settings showcase the diamond more prominently, while three-prong settings offer better protection against prong loss. Consider a wider band for added stability, especially if you prefer wearing the ring every day.

Size and Proportion

Square diamonds with a length-to-width ratio of 1:1 display optimal symmetry and balance. As the diamond's size increases, ensure the shoulders and shank match in width to maintain aesthetic proportions. This attention to detail helps the ring look more substantial and well-crafted.

Budget Considerations

Square diamonds often command higher prices than round diamonds of similar quality due to their more intricate cutting requirements. To stay within budget, consider alternative diamond shapes that offer similar brilliance at a lower cost. Additionally, explore certified diamonds with minor inclusions or less desirable color grades to find a truly exceptional ring without breaking the bank.

FAQ

What makes square diamond engagement rings unique?

Square diamond engagement rings combine geometric elegance with brilliant sparkle. Unlike round diamonds, square cuts showcase more facets per carat, creating an impressive visual effect. Popular square cuts include princess, asscher, and cushion shapes, each offering distinctive proportions and brilliance patterns.

These rings typically feature square or rectangular settings that maximize the stone's brilliance. The square shape makes it easy to align multiple diamonds in a row, allowing for creative ring designs with increased stone count.

How do square cuts compare to round diamonds?

While round diamonds excel at light return and brilliance, square cuts offer several advantages. They maximize carat weight visibility and can appear larger for their size. Square cuts also provide more finger coverage and security for daily wear.

Round diamonds, however, often have better fire and scintillation. They're generally more resistant to chipping due to their continuous girdle, making them ideal for everyday wear. Square cuts require more protective settings to prevent chip risk.

Which metal finishes suit square diamond rings?

Popular choices include platinum, white gold, and titanium. These metals complement the square's clean lines and modern look. Platinum and white gold offer classic appeal, while titanium provides hypoallergenic options for active lifestyles.

Yellow and rose gold offer warmer alternatives for those preferring traditional metal tones. White gold finishes can range from cool platinum-like to warm rose tones, allowing for personal preference customization.

How should you clean square diamond rings?

Daily cleaning with mild soap and warm water maintains your ring's brilliance. Professional cleanings every 6 months ensure optimal sparkle and check for setting integrity.

Avoid ultrasonic cleaners if your ring has princess-cut corners, as they can damage these specific settings. For routine care, use a soft brush to remove trapped particles between facets.

What maintenance is required for square diamond rings?

Regular inspection by a jeweler every 6-12 months checks for setting integrity, prong wear, and overall condition. Routine cleaning and proper storage prevent damage and preserve value.

Check the prongs monthly for secure setting. If the prongs appear worn or loose, have them evaluated by a jeweler to prevent stone loss. Keep the ring in a soft-lined box when not worn to prevent scratches.

How do square diamond rings hold up to daily wear?

Square diamond rings can handle daily wear but require more protective settings, especially for princess cut corners. Proper prong design and metal quality significantly affect durability.

Choose settings with hidden prongs or bezel settings for corners, as open prong settings are more susceptible to chip damage. High-quality metal work reduces stress on individual stones, extending ring life.

As an Amazon Affiliate™ I receive compensation through qualifying purchases at no cost to you.

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