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One-Carat Diamond Rings

One-carat vintage rings offer a bold, timeless look that defines the Art Deco and Mid-Century eras. These authentic originals feature hand-cut diamonds in gold or platinum settings, chosen for their craftsmanship and historic character.

24 products

Art Deco Old European Cut Diamond Engagement Ring 1.00 CT Platinum – GIA E/VS1 Circa 1920s
Art Deco Old European Cut Diamond Engagement Ring 1.00 CT Platinum – GIA E/VS1 Circa 1920s

Art Deco .98 Ct Old European Cut Diamond Solitaire Engagement Ring in Platinum | GIA I/VS2
Art Deco .98 Ct Old European Cut Diamond Solitaire Engagement Ring in Platinum | GIA I/VS2

1930s Art Deco Diamond Halo Engagement Ring in Platinum
1930s Art Deco Diamond Halo Engagement Ring in Platinum

Vintage 1.13 Ct Cushion Cut Diamond Engagement Ring with Bullet Accents | Platinum | GIA
Vintage 1.13 Ct Cushion Cut Diamond Engagement Ring with Bullet Accents | Platinum | GIA

Art Deco 1.01 Ct Old European Cut Diamond Platinum Engagement Ring | Circa 1930s
Art Deco 1.01 Ct Old European Cut Diamond Platinum Engagement Ring | Circa 1930s

Art Deco 1.06 Ct Old European Cut Diamond Engagement Ring | GIA H/SI2
Art Deco 1.06 Ct Old European Cut Diamond Engagement Ring | GIA H/SI2

The Lunia Ring | GIA Certified .96ct G-I1 Marquise Cut Diamond Platinum Three-Stone
The Lunia Ring | GIA Certified .96ct G-I1 Marquise Cut Diamond Platinum Three-Stone

Art Deco Old European Cut Diamond Halo Engagement Ring in Platinum | 1920s
Art Deco Old European Cut Diamond Halo Engagement Ring in Platinum | 1920s

Vintage 1.20 Ct Oval Cut Diamond & Baguette Three-Stone Engagement Ring in Platinum
Vintage 1.20 Ct Oval Cut Diamond & Baguette Three-Stone Engagement Ring in Platinum

Art Deco .97 Ct Old European Cut Diamond Vintage Engagement Ring GIA H/SI2 in 18K White Gold
Art Deco .97 Ct Old European Cut Diamond Vintage Engagement Ring GIA H/SI2 in 18K White Gold

Art Deco 1.02 Ct Old European Cut Diamond 18K White Gold Solitaire Engagement Ring – GIA H/I1
Art Deco 1.02 Ct Old European Cut Diamond 18K White Gold Solitaire Engagement Ring – GIA H/I1

Vintage Cushion Cut Diamond Engagement Ring Platinum 1.30 Ct GIA G/I1
Vintage Cushion Cut Diamond Engagement Ring Platinum 1.30 Ct GIA G/I1

Art Deco 1.44 CTW European Cut Diamond Vintage Engagement Ring with Tiered Side Stones
Art Deco 1.44 CTW European Cut Diamond Vintage Engagement Ring with Tiered Side Stones

  • Sold Out

SOLD Art Deco 1.42 CTW Old European Cut Diamond Platinum Antique Engagement Ring GIA J/SI2
  • Sold Out

SOLD Art Deco 1.42 CTW Old European Cut Diamond Platinum Antique Engagement Ring GIA J/SI2

Art Deco Old European Cut Diamond Engagement Ring in Platinum | 1930s
Art Deco Old European Cut Diamond Engagement Ring in Platinum | 1930s

  • On Sale

Magnificent Art Deco 1.40 CTW European Cut Diamond Vintage Engagement Ring
  • On Sale

Magnificent Art Deco 1.40 CTW European Cut Diamond Vintage Engagement Ring

  • On Sale

Art Deco Old European Cut Diamond Halo Engagement Ring in Platinum | 1940s
  • On Sale

Art Deco Old European Cut Diamond Halo Engagement Ring in Platinum | 1940s

Vintage Simon G .81ct GIA Brilliant Cut Diamond 18K White Gold Engagement Ring
Vintage Simon G .81ct GIA Brilliant Cut Diamond 18K White Gold Engagement Ring

Vintage 1.36 Ct Fancy Greenish Yellow Diamond Engagement Ring in Platinum & 18K Gold | GIA
Vintage 1.36 Ct Fancy Greenish Yellow Diamond Engagement Ring in Platinum & 18K Gold | GIA

Mid-Century 1.62 CTW Fancy Yellow Diamond Vintage Engagement Ring
Mid-Century 1.62 CTW Fancy Yellow Diamond Vintage Engagement Ring

Art Deco 1.32 CT Old European Cut Diamond Solitaire Engagement Ring in 18K White Gold | Circa 1920s GIA J/SI2
Art Deco 1.32 CT Old European Cut Diamond Solitaire Engagement Ring in 18K White Gold | Circa 1920s GIA J/SI2

Art Deco .90 CT Old European Cut Diamond Engagement Ring | 18K White Gold H/SI2
Art Deco .90 CT Old European Cut Diamond Engagement Ring | 18K White Gold H/SI2

Art Deco 1.26 CTW Old European Cut Diamond Sapphire Engagement Ring GIA J SI1
Art Deco 1.26 CTW Old European Cut Diamond Sapphire Engagement Ring GIA J SI1

Mid-Century Marquis Cut Diamond Engagement Ring 1.19 Carat GIA F/I3
Mid-Century Marquis Cut Diamond Engagement Ring 1.19 Carat GIA F/I3

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