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Discover 18 Magnificent 3 Carat Diamond Rings

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A diamond engagement ring may be the most important jewellery piece you’ll purchase in your lifetime, acting both as a token of lasting love and commitment and as an investment piece that will preserve its value for years. 

With size, setting, and style as individual as the brides who wear them, a 3 carat diamond ring hits the optimal balance. It’s bold enough to make a sparkling statement, yet not too large for daily wear. 

When selecting a stone, pay close attention to each aspect of the 4Cs of  diamond quality gradings—carat, cut, colour, and clarity. While many buyers focus on clarity and colour, the cut also plays an important role in the diamond’s sparkle. 

So ready to start shopping? We’ve carefully selected a list of incredible 3 carat diamond engagement rings by 18 top-rated luxury brands. With flawless stones, rare cuts, and stunning settings, these swoon-worthy pieces will surely have you saying “I do.” 

Bulgari

Dedicata a Venezia: 1503 Ring 

3-carat-diamond-ring-Bulgari

Why we like it: Venetian heritage

This graceful band by Bulgari is named after 1503, the year the first engagement ring was exchanged in Venice. Channelling the romance of the enchanting city, the platinum ring is set with pavé diamonds and a luminous round brilliant cut centre stone. 

David Yurman

Lanai Engagement Ring

3-carat-diamond-ring-David Yurman

Why we like it: DY Signature cut

Interlaced bands present a play on David Yurman’s beloved Cable motif in this modern platinum beauty that’s hand-set with pavé diamonds. The centre stone, starting at 0.7 carats, profiles the patented DY Signature Cut, a contemporary take on the “cushion brilliant,” with 58 facets for maximum sparkle. 

Cartier

Trinity Ruban Solitaire Ring 

3-carat-diamond-ring-Cartier

Why we like it: Sparkling ribbon setting 

A trio of platinum bands paved with brilliant-cut diamonds dance in a ribbon-like whirl around Cartier’s brilliant-cut solitaire at the centre, creating a three-dimensional shape that sparkles from every angle. 

Van Cleef & Arpels

Unique Solitaires Ring 

3-carat-diamond-ring-Van Cleef & Arpel

Why we like it: Unique fan shape

Elegant geometric shapes, inspired by the delicate fans of ladies dancing at a ball, unfold on either side of this unique band by Van Cleef & Arpels, with the emerald-cut 3.02 carat solitaire shining at the centre.

Piaget

Treasures Ring

3-carat-diamond-ring-Piaget

Why we like it: Organic inspirations

The Piaget Treasures collection highlights the power of exceptional jewels. This exquisite piece glitters with a pear-shaped yellow diamond, flanked by delicate pavé leaf motifs. 

De Beers

Aura Fancy Colour Oval Shaped Diamond Ring

3-carat-diamond-ring-De Beers

Why we like it: Rare purplish pink diamond

An oval shape lends a nostalgic vintage vibe to this romantic ring. Beset with a stunning and rare 3.09 carat solitaire in a purplish-pink hue, it’s cut in De Beers’ chromatic Aura style. A rose gold prong setting, finished with a pavé platinum frame and band, echoes the pretty colour. 

Chaumet

Joséphine Aigrette Impériale Ring

3-carat-diamond-ring-Chaumet

Why we like it: Regal imperial style

An engagement piece fit for an empress, this regal stunner from Chaumet is designed in the shape of an imperial crown. Paved with 72 brilliant-cut diamonds, it’s topped with an incredible 3 carat pear-shaped yellow diamond at the helm. 

Graff

Icon Cushion Cut Yellow Diamond Engagement Ring

3-carat-diamond-ring-Graff

Why we like it: Graff’s rare yellow diamonds

Sunny days are ahead with this golden stunner from Graff. Gleaming with a cushion cut diamond in vivid yellow, this piece is a testament to Graff’s expertise with this rare yellow diamond colour. A matching pavé yellow gold band complements the centrepiece. 

Harry Winston

Bridal Couture Marquise Diamond Engagement Ring

3-carat-diamond-ring-Harry Winston

Why we like it: A perfect pairing

The perfect ring for the perfect pair. This avant-garde piece by Harry Winston places two 1.51 carat marquise diamonds side-by-side in a nod to the asymmetrical hemlines of modern bridal couture, with 35 round brilliant diamonds paving the platinum band. 

Verdura

Lace Solitarire Ring

3-carat-diamond-ring-Verdura

Why we like it: Study in contrasts

For the bride with classic taste, legacy jeweller Verdura delivers a dramatic yet understated ring. A bold emerald cut solitaire is balanced by a delicate double pavé and platinum band.  

Gerrard

Evermore Pear Shape Halo Engagement Ring 

3-carat-diamond-ring-Gerrard

Why we like it: Royal British roots

From the British royal crown jeweller comes this eloquent ring starring a pear-shaped 1.51 carat diamond. Gerrard‘s Evermore setting elevates the stone to magnify its brilliance, while pavé diamonds create a sparkling frame extending partially around the platinum band.

Buccellati

Jasmine Ring

3-carat-diamond-ring-Buccellati

Why we like it: Italian jewellery tradition

A tale of exceptional Italian craftsmanship is told in every detail of this traditionally styled ring by Buccellati—from the drop-shaped diamonds to the pavé diamond border and yellow gold details. Fifty-nine diamonds, weighing a total of 3.60 carats, sparkle in this stately piece. 

Boucheron

Etoile de Paris Engagement Ring 

3-carat-diamond-ring-Boucheron

Why we like it: Mastery of illusion

A dimensional mise en abyme design shines playfully in this gorgeous piece by Boucheron. The brilliant cut solitaire is held in a faceted gem-like setting, creating a “stone within a stone” illusion. Two more rows of sparkling diamonds line the top and bottom of this rounded band. 

Roberto Coin

Ring Cento Diamond Bridal 

3-carat-diamond-ring-Roberto Coin

Why we like it: The Cento cut

A Cento solitaire sits at the heart of this 18-karat white gold ring by Roberto Coin—a cut made with 100 facets, nearly double that of a standard diamond, creating a kaleidoscope-like light play. The stone is supported by a handmade basket-shaped King Cross setting, which shows off the stone without obstructing the light. 

Moussaieff

Fancy Greyish Blue and Pink Diamond Ring

3-carat-diamond-ring-Moussaieff

Why we like it: Greyish blue and pink diamonds

This colourful ring by Moussaieff—resembling an exotic flower—shows off a mesmerizing 2.02 carat greyish-blue diamond surrounded by pear-shaped diamonds with more pink diamonds paving the platinum band. 

Boghossian

Kissing Yellow Diamond and Diamond Ring

3-carat-diamond-ring-Boghossian

Why we like it: Signature “kissing technique”

The unique design of this sophisticated ring highlights Boghossian‘s signature “kissing technique.” Two stunning diamonds—an 0.83 carat orange-yellow emerald-cut and a 3.45 carat hexagonal stone—are wrapped in an embrace on a double pave band. 

Jacob & Co.

Lozenge Step Cut Diamond Ring

3-carat-diamond-ring-Jacob & Co.

Why we like it: Vintage Art Deco vibes

For the bride who isn’t afraid to make a statement, bold Art Deco style makes an entrance in this fascinating cocktail ring by Jacob & Co. A crossover design in platinum and rose gold is paved with 504 brilliant pink and white diamonds that surround a captivating 3.65 carat diamond in a Lozenge Step cut inspired by the Art Deco period. 

Bayco

Rose Cut Diamond Ring 

3-carat-diamond-ring-Bayco

Why we like it: Historic rose cut

Lovers of all things antique will delight in this Old-World-inspired ring by Bayco, featuring a diamond with the ancient rose cut, which has appeared in royal jewels for centuries. A 2.96 carat stone is at the centre of this floral-shaped ring that’s surrounded by twelve more diamonds on a simple band. 

 

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Inspired for a Beautiful Life

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