Shop our selection of stunning engagement rings that feature diamonds that weigh between 3.00 carats and 3.99 carats.

Showing 1–36 of 77 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

$39,000
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 Old European Cut Diamond Engagement Ring. Bayside Ring

$55,000
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
Oval Rose Cut Diamond Micropave Engagement Ring - Bel Air Ring 13870 TV
Rose Cut Diamond Pave Set Shank Engagement Ring 13870-TSV-1000PX
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3.02ct Oval Rose Cut Diamond Bel Air Ring

$54,000
3.14ct GIA Certified Emerald Cut Diamond with diamond accents Deansgate Ring 13601
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
3.26ct Old Euro 18k Yellow Gold with diamond Halo Astoria Ring 14361
3.26ct Old Euro 18k Yellow Gold Halo Astoria Ring 14361
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GIA 3.26ct Old Euro 18k Yellow Gold Halo Astoria Ring

$40,000
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.

$60,000
14157 TV Antique Cushion cut Diamond with Sapphire Halo Engagement Ring 14157
14157 Top Side View Cushion Vintage Diamond and Sapphire Platinum Ring
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3.03ct Antique Cushion Cut and Sapphire Halo Montreal Ring

$33,000
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 3.65ct Diamond Debonair Ring. Retro Era, Circa 1940

$52,000
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
Top View 3.01 Aquamarine and Onyx Gemstone Ring 15349
Top Side View Round-Cut Aquamarine with Onyx Halo 15349
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3.01ct Aquamarine with Onyx Halo Abriola Ring. Circa 1935, Antique, Art Deco Era

$4,000
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

$45,000
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
Bryant Park Ring cushion cut diamond and sapphire ring 14634-TV-1000PX
cushion cut diamond and sapphire ring Bryant park ring 14634-TSV-1000PX
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Geometric 3.33ct Antique Cushion Cut Diamond Bryant Park Ring

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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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3.08ct 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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Top View Pear-Shaped Diamond Ring Graff Ring SB615
Top Side View 3.41 Carat Diamond RIng Graff Ring SB615
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Graff 3.41ct Pear Shape Diamond Ring

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Tiffany Oval Cut Fancy Intense Yellow Diamond Ring - SB502 TV
Signed Tiffany Fancy Yellow Diamond Engagement Ring - SB502 TSV
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Tiffany 3.14ct Fancy Yellow Diamond Ring

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Top View GIA-Certified 3.05 Carat Diamond Ring Osceola Ring 15132
Top Side View Platinum and Diamond Ring Osceola Ring 15132
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Vintage 3.05ct Mauboussin Ring. Retro Era, Circa 1945

$45,000
Retro 3.15ct Center Old European Cut and Baguette Cut Diamond Ring 14262
French Retro Diamond Platinum Engagement Ring - Emerson Ring 13890 TSV
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Vintage French 3.15ct Emerson Ring. Circa 1945, Retro Era

$56,000