Explore exceptional 3 carat diamond engagement rings featuring antique and modern cuts in distinctive settings. Afshin Shaddaie and Michael Khordipour personally select each ring for its diamond’s beauty, proportions, visual presence, certification, and setting craftsmanship. From authentic Art Deco designs to elegant three-stone and signed rings, each piece offers remarkable scale, character, and individuality.

Showing 1–30 of 38 results

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Antique Art Deco 3.07ct Diamond Halo Engagement Ring. Glenview Ring. Circa 1930 14273
Antique Art Deco 3.07ct Diamond Halo Engagement Ring. Glenview Ring 14273
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Antique Art Deco 3.07ct Diamond Halo Engagement Ring. Glenview Ring. Circa 1930

$33,000
3.80 carat GIA-Certified Center round diamond with diamonds on shoulder Camdenton Ring SB6123
Antique Gia diamond Ring 3.80 carats with diamonds shoulders SB6123
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Antique GIA 3.80ct Old European Cut Diamond Camdenton Ring, Circa 1920

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4.25ct Old European Cut Diamond And Baguette Halo Accented Ring 14034-TV-1000PX
Platinum Mounting Open Work Under Gallery Diamond Engagement Ring 14034-TSV-1000PX
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3.80ct GIA Old European Cut Diamond Engagement Ring. Bayside Ring

$45,000
3.01 Carat Radiant cut diamond Ellerbe Ring Top View
GIA 3.01 Carat Diamond Ring Ellerbe Ring Top Side View
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3.01ct, F color Radiant Cut Diamond Ellerbe Ring

$68,000
3.14ct GIA Certified Emerald Cut Diamond with diamond accents Deansgate Ring 13601 TV
Platinum Three Stone 3.14ct Emerald Cut Engagement Ring 13601-TSV-1000PX
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3.14ct GIA Certified Emerald Cut Diamond Deansgate Ring

$60,000
Marbury 3.53ct Antique Cushion Cut Diamond Ring Three Stone TV HER604
Marbury 3 carat Antique Cushion Cut Diamond Engagement Ring TSV
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Three-Stone Antique Cushion Cut Diamond Marbury Ring

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3.04ct Diamond and Platinum Engagement Ring - Osborne Ring 13928 Top View
Vintage 3.04ct Round Brilliant Diamond Ring - Osborne Ring 13928 TSV
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Vintage GIA Certified 3.04ct Diamond Ring, Circa 1960. Osborne Ring.

$40,000
3 carat Diamond and Platinum Ring Olivette Engagement Ring HER608
Diamond Olivette Ring Platinum Design EDJ TSV
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Bow Motif GIA Certified 3.43ct Diamond Olivette Ring

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emerald cut center diamond with baguette diamond accenting stones platinum Cartier Ring HER127
Cartier GIA Certified 3.04ct Emerald Cut Diamond with accenting diamonds Ring HER127
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Cartier GIA Certified 3.04ct Emerald Cut Diamond Ring

$180,000
Retro Era Old European Diamond Ring - Weymouth Ring 14378 TV
Side View Vintage Old European Cut Diamond French Engagement Ring 14378
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Vintage GIA 3.65ct Diamond Debonair Ring. Retro Era, Circa 1940

$47,000
Vintage Retro Era 3.42ct Diamond Gatineau Ring, Circa 1945 14885
Vintage Retro Era 3.42 carat Diamond Gatineau Ring, Circa 1945 14885
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Vintage Retro Era 3.42ct Diamond Gatineau Ring, Circa 1945

$65,000
3.06 carat oval cut fancy yellow diamond platinum Barnwell Ring TV JR07
3 Carat Fancy Yellow Diamond Engagement Ring GIA JR07
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3.06ct GIA Oval Cut Fancy Yellow Diamond Barnwell Ring

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3.07ct Old European Cut Diamond Ring - Altona Ring 14355 Top View
Old European Diamond Sapphire Halo Ring - Altona Ring 14355 TSV
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3.07ct Diamond and Sapphire Halo Altona Ring

$37,500
GIA certified 3.08 carat diamond ring with detailed design Rockland ring15689
3.08ct Art Deco Diamond with intricate swirl detailing Rockland Ring 15689
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3.08ct Art Deco Diamond Rockland Ring, Circa 1925

RESERVED
GIA-Certified Cushion Shaped Antique Rose-Cut Engagement Ring HER4
Cumbria Ring Top Side View
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3.11ct Rose Cut Diamond Bergon Ring

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3-carat Vintage Diamond Solitaire Engagement Ring 13245 Top View
3.14-carat diamond solitaire engagement ring 13245 TSV
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3.14ct Transitional Cut Diamond Cascais Ring

$35,000
3 carat radiant cut yellow diamond platinum diamond accent Calada Ring J1292 TV
3.00 carat radiant cut diamond diamond accent platinum Calada Ring J1292 TSV
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3ct GIA Radiant Cut Fancy Yellow Diamond Calada Ring

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3.08ct cushion cut center diamond in bezel setting Clearfield Ring DAKA1
Antique ring circa 1920s with large center diamond Clearfield Ring DAKA1
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Antique 3.08ct Cushion Cut Diamond Clearfield Ring, Circa 1920

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Art Deco 3.02 carat center old european cut diamond Sandstone Ring SB6127
Art Deco 3.02ct GIA Old European Cut Diamond Sandstone Ring SB6127
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Art Deco 3.02ct GIA Old European Cut Diamond Sandstone Ring, Circa 1925

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Top View Art Deco Era Platinum Engagement Ring SB0533
Bayard 3.50ct Diamond Antique platinum Ring SV
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Art Deco 3.50ct Diamond Bayard Ring. Antique, Circa 1920

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3.08 carat certified GIA art deco ring with filigree design Wanette Ring 15689
Art Deco era GIA 3.08 carat Diamond Wanette Ring, Circa 1925 15689vb
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Art Deco GIA 3.08ct Diamond Wanette Ring, Circa 1925

$45,000
Antique, Art Deco 3.07 carat old European cut diamond Delaney Ring 16304 TV
French Antique 3.07ct old European Diamond platinum Delaney Ring 16304 TSV
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French Antique GIA 3.07ct Diamond Delaney Ring, Circa 1925

$33,000
Antique Art Deco 3.09ct old European cut diamond platinum Parsons Ring 16332 TV
Art Deco 3.09 carat old European cut platinum engraved Parsons Ring 16332 TSV
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French Antique GIA 3.09ct Diamond Parsons Ring, Circa 1920

$42,500
Emerald Cut Diamond Ring Colborne Ring Top View 14015
gia certified 3.00ct emerald cut diamond ring
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GIA 3.00ct Emerald Cut Diamond Colborne Ring

$80,000
3.02ct asscher cut diamond platinum accent Toiano Ring DS5201
3.02ct Asscher Cut Diamond platinum diamond accent Toiano Ring DS201 SV
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GIA 3.02ct Asscher Cut Diamond Toiano Ring

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fancy deep orangy yellow center diamond with white diamond accents Berwyn Ring SBD6116
GIA certified 3.03 carat Emerald Cut Fancy Diamond with diamond accents Berwyn Ring sbd6116
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GIA 3.03ct Emerald Cut Fancy Diamond Berwyn Ring

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3.06 carat cushion cut diamond champagne color platinum Batesville Ring 16494 TV
New
3.06 carat cushion cut platinum sapphire halo Batesville Ring 16494 TSV
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GIA 3.06ct Champagne Diamond Halo Batesville Ring

$25,000
3.08ct cushion cut diamond platinum accent Andilla Ring DS9650 TV
3.08 carat cushion cut diamond platinum accent Andilla Ring DS9650 TSV
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GIA 3.08ct Cushion Cut Diamond Andilla Ring

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3.16 carat old European cut diamond platinum Masonville Ring 16374 TV
3.16 carat old Euro diamond platinum diamond accent Masonville Ring 16374 TSV
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GIA 3.16ct Old European Cut Diamond Masonville Ring

$45,000
3.71 carat elongated radiant cut yellow diamond Lakeland Ring RC104934 TV
New
3.71 carat elongated radiant cut yellow diamond platinum Lakeland Ring RC104934 TSV
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GIA 3.71ct Radiant Cut Yellow Diamond Lakeland Ring

$32,000