Our collection of K-Color Diamond Engagement Rings. Curated by Estate Diamond Jewelry. These diamonds have a center diamond that features K Color.

Showing 1–36 of 191 results

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Antique, Art Deco 0.85ct old European cut diamond Evergreen Ring 16404 TV
Art Deco 0.85ct Diamond filigree Evergreen Ring 16404 TSV
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Art Deco 0.85ct Diamond Evergreen Ring, Circa 1920

$4,500
2.00 carat old European cut center diamond with split shank design Villamont Ring EURA207
Art Deco ring centering a 2.00ct Diamond Villamont Ring, Circa 1920 EURA207
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Art Deco 2.00ct Diamond Villamont Ring, Circa 1920

$25,000
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
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
2.16ct GIA-Certified old european cut diamond with sapphire details Chrysler Ring 15836
antique Art Deco GIA 2.16ct Diamond and Sapphire Chrysler Ring, Circa 1925 15836
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Art Deco GIA 2.16ct Diamond and Sapphire Chrysler Ring, Circa 1925

$25,000
Edwardian Antique Bohemia 1.48ct Diamond Engagement Ring. Circa 1900 13506
Edwardian Antique Bohemia 1.48ct Diamond Engagement Ring 13506
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Edwardian Antique Bohemia 1.48ct Diamond Engagement Ring. Circa 1900

$12,000
Vintage Old European GIA cut Diamond Ring 14240-TV
Platinum and Diamond Vintage Ring Riverview Ring Side View 14240
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Vintage 1.19ct GIA Certified Old European Cut Diamond Riverview Ring

$9,000
Retro Old European Cut Diamond Ring - Berge Ring 13495
Vintage Old European Cut Diamond Ring - Berge Ring 13495
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Vintage Retro Era 0.60ct Diamond Engagement Ring. Berge Ring, Circa 1940

$4,000
Leaf Motif and Diamond Ring Cairns Ring Top View 14090
Old European Cut Diamond Ring Cairns Ring 14090 Top Side View
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1.16ct Old European Cut Diamond Ring in Platinum. Cairns Ring

$8,000
Top View Diamond and Ruby Halo Engagement Ring 13762
Platinum Mounting Triple Wire Shank Open Work Under Gallery Halo Engagement Ring 13762-TSV-1000PX
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1.59ct Old European Cut Diamond Ruby Halo Plano Ring

$17,000
Top View Diamond and Platinum Engagement Ring Radom Ring 14753
Top Side View Diamond on Platinum Engagement Ring 14753
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2.01ct Old European Cut Diamond Radom Antique Ring, Circa 1930

$23,000
4 Carat Diamond Old European Cut and Sapphire Halo Ring 14628-TV
4.26 Carat Diamond and Sapphire Ring Yale Ring Top Side View
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4.26ct Old Euro Cut Diamond Engagement Yale Ring

$60,000
7.55ct Old European Cut Diamond GIA Rockford Ring D5163
Prong Set Old European Cut Diamond Ring - Rockford Ring
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7.55ct OEC Diamond GIA Rockford Ring – Circa 1920

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Georgian 14k rose cut diamond cluster ring Fayston ring 15720
Georgian Rose Cut Cluster of diamonds Gold Fayston Ring, Circa 1810 15720
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Georgian Rose Cut Diamond Cluster Gold Fayston Ring, Circa 1810

LAYAWAY
Top View Octagon Shaped Diamond Engagement Ring Bentham Ring 15427
Top Side View 1.07 carat Diamond Center with Halo of Diamonds 15427
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GIA-Certified 1.07ct Old European Cut Diamond Bentham Ring

$9,100
Sulham Ring Vintage Cushion Cut Diamond and Emerald Halo Engagement Ring TV
Antique Cushion Cut Diamond and Emerald Halo Engagement Ring 12954 Sulham Ring Top View
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1.30ct Antique Cushion Diamond and Emerald Halo Platinum Sulham Ring

$9,500
Diamond and 18k Yellow Gold Ring Somerville Ring Top View 12387
Diamond and 18k Yellow Gold Somerville Ring Top Side View 12387
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1.41ct Diamond and 18k Yellow Gold Somerville Ring

$14,000
Yellow Gold and Diamond Ring Princeton Ring Top View 14688
Hand-Engraved Yellow Gold Ring Princeton Ring Top Side View 15474
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1.47ct Old European Cut Diamond 18k Yellow Gold Princeton Ring

$10,500
1.89ct Old European Diamond Sapphire Ring - Regal Ring 14429 TV
Diamond and Sapphire Halo Engagement Ring - Regal Ring 14429 TSV
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1.89ct Diamond and Sapphire Halo Regal Ring

$14,500
Top View Diamond and Sapphire Platinum Engagement Ring 15425
striking halo and diamond engagement ring Top Side View 15425
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2.05ct Diamond Sapphire Halo Sheep Meadow Ring

$17,000
Top View Old European Cut Diamond Ring Bollon Ring 13806
Platinum Art Deco Style Ring Bollon Ring Top Side View
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2.84ct Diamond and Emerald/Onyx Accent Platinum Bollon Ring

$35,000
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
Kennedy ring old european cut diamond ring 14449-TV-1000PX
old european cut diamond ring Kennedy ring 14449-TSV-1000PX
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Antique Diamond and Double Halo Platinum Kennedy Ring

RESERVED
Top View Double Halo of Rubies and Diamonds Ironton Ring 14057
0.58 carats Antique Cushion-Cut Diamond Engagement Ring Top Side View 14057
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0.58ct Diamond and Double Halo Platinum Ironton Ring

$4,500
1.05ct Diamond and Sapphire Halo with diamonds on shoulders Vardo Ring 14431
Top Side View French Cut Rubies and Sapphire Ring 11431
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1.05ct Diamond and Sapphire Halo Vardo Ring

$7,300
Old European Cut Diamond and Halo Ring Geneva Ring Top View 13763
Diamond and Onyx Ring Geneva Ring Top Side View
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1.06 Carat Diamond and Onyx/Diamond Halo Platinum Geneva Ring

RESERVED
1.09ct Old European Cut Diamond Engagement Ring - Basswood Ring 12965
1.09 carat 3 Stone Old European Cut Diamond Engagement Ring 12965
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1.09ct Old European Cut Diamond Volos Ring

$8,000
1.11ct Diamond and Sapphire Platinum Engagement Ring 13281 Top View
1.11ct Diamond and Sapphire Engagement Ring 13281 TSV
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1.11ct Diamond and Sapphire Accent Elongated Elvas Ring

$9,500
18k Yellow Gold Old European Cut Engagement Ring Hyde Ring TV 13638
Old European Cut Diamond Leaf Motif Accented Shoulder Top Side View 13638_TSV
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1.18ct Diamond 18k Rose Gold Hyde Ring

$7,200
old European diamond with sapphire and diamond floral design Bedec ring 16010
1.26ct Diamond Floral Sapphire and Diamond Bedec Ring 16010 top side view photo
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1.26ct Diamond Floral Sapphire and Diamond Bedec Ring

$8,000
Top View Diamond and White Gold Solitaire Ring - Fairmont Ring
-10%
White Gold and Diamond Solitaire Ring - Fairmont Ring 13433
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1.29ct Old European Cut Diamond Fairmont Ring. Circa 1980

Original price was: $9,000.Current price is: $8,100.
Old European Cut Diamond Engagement Ring - Corby Ring
Bezel-Set 1.29ct Old European Cut Diamond Sapphire Halo Corby Ring
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1.29ct Old European Cut Diamond Sapphire Halo Corby Ring

$9,700
lively antique cushion cut diamond Springdale Ring Top View 12587
Antique cushion-cut diamond engagement ring Top Side View
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1.30ct Antique Cushion Cut and Cluster Springdale Ring

RESERVED
1.25ct Diamond and Sapphire Double Halo Platinum Engagement Ring 13128
1.25 carat Diamond Sapphire Platinum Filigree Engagement Ring 13128
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1.30ct Diamond and Double Halo Platinum Obidos Ring

$12,200
1.42ct Diamond with Sapphire Halo and diamond accents Brookville Ring 14111
1.42ct Diamond and Sapphire Halo Brookville Ring 14111
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1.42ct Diamond and Sapphire Halo Brookville Ring

$11,600
Chester Ring Top View 1.50-carat old European cut diamond ring 12192
delicate leaf-motif engagement ring Chester Ring Top Side View 12192
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1.50ct Diamond Platinum on 18k Yellow Gold Leaf Chester Ring

$18,000