Browse diamond engagement rings,&nbsp;including one-of-a-kind pieces. From branded rings by Cartier&nbsp;and&nbsp;Van Cleef &amp; Arpels to vintage sapphire engagement&nbsp;rings&nbsp;and custom creations, our selection offers a range of ideas for life’s most important ring. <a href="https://www.sothebys.com/en/buy/luxury/jewelry/ring" rel="noopener noreferrer" target="_blank">All Rings</a>&nbsp;|&nbsp;<a href="https://www.sothebys.com/en/buy/luxury/jewelry" rel="noopener noreferrer" target="_blank">All Jewelry</a>

Engagement Rings

Centering a cushion-cut diamond, accented by 38 round brilliant-cut diamonds.<ul><li>Cushion-cut diamond weighs 1.77 carats</li><li>Accented diamonds weighing a total of approximately 0.70 carat</li><li>Platinum</li><li>Total weight 5.90 grams</li><li>Size 4¾</li><li>Accompanied by GIA report no. 1226802342, dated 26 January 2023, stating that the 1.77 carat diamond is D color and IF clarity</li></ul>

Platinum and 1.77ct Cushion Cut Diamond Halo Engagement Ring

Victorian three-stone ring centrally set with a cushion shape old mine diamond flanked by two round old cut diamonds, further adorned by 6 round eight cut diamonds.<ul><li>Diamonds weighing a total of approximately 3.07 carats</li><li>Yellow gold</li><li>Circa 1890</li><li>Size 6</li></ul>

Gold and 3.07ct Diamond Three Stone Ring 

Set to the center with a marquise shape old cut diamond in an open claw back setting flanked by two tapered baguette cut diamonds<ul><li>Marquise cut diamond weighing 3.04 carats</li><li>Baguette cut diamonds weighing a total of approximately 3.54 carats</li><li>Marked BOUCHERON, French</li><li>Platinum</li><li>Circa 1950</li><li>Size 5¼&nbsp;</li><li>Accompanied by HRD report no. 13016955002 dated 5 June 2013 stating that the 3.04 carat marquise cut diamond is H color with SI1 clarity</li><li>Accompanied by original box</li></ul>

Platinum and 3.54ct Marquise Cut Diamond Ring

Set to the center with a cushion-shaped old mine fancy intense yellow diamond, flanked by two tapered baguette-cut diamonds.<ul><li>Old mine fancy intense yellow diamond weighing 2.39 carats</li><li>Surrounding diamonds weighing a total of approximately 0.50 carats</li><li>Yellow gold and platinum</li><li>Circa 1950</li><li>Size 6</li><li>Accompanied by GIA report no. 2223772946, dated 13 January 2023, stating that the 2.39 carat diamond is natural with fancy intense yellow color and SI1 clarity</li></ul>

Gold, Platinum, 2.39ct Fancy Intense Yellow Diamond Solitaire Ring 

Centering a pear-shaped yellow diamond, accented by round brilliant-cut diamonds.<ul><li>Diamonds weighing a total of approximately 3.90 carats</li><li>18 karat yellow gold and white gold</li><li>Total weight 5.86 grams</li><li>Size 7</li></ul>

White Gold, Yellow Gold, Yellow Diamond and Diamond Ring

Composed of an emerald-cut diamond and 4 yellow emerald-cut diamonds.<ul><li>Diamonds weighing a total of approximately 1.30 carats</li><li>18 karat white and yellow gold</li><li>Total weight 3.20 grams</li><li>Size 7</li></ul>

White Gold, Gold, Yellow Diamond and Diamond Ring

Centered with an oval-shaped natural pinkish-orange Ceylon Padparadscha sapphire with old-cut pear-shape diamonds.<ul><li>Pinkish-orange Ceylon Padparadscha sapphire weighing 2.56 carats</li><li>Surrounding diamonds weighing a total of approximately 0.50 carat</li><li>British with British maker's mark and assay</li><li>18 karat rose gold</li><li>Total weight 3.7 grams</li><li>Accompanied by gemstone report no. GRS2013-070579, dated 29 July 2013, stating that the 2.56 carat gemstone is natural, of Sri Lankan origin and untreated. </li></ul>

Rose Gold, 2.56ct Pinkish-Orange Padparadscha Sapphire and Diamond Ring 

Centered with an asscher-cut diamond surrounded by a halo of round brilliant-cut diamonds.<ul><li>Asscher-cut diamond weighing 2.17 carats</li><li>Surrounding diamonds weighing a total of approximately 0.50 carat</li><li>British with British maker's mark and assay mark</li><li>Platinum</li><li>Total weight 6.2 grams</li><li>Size 5 3/4</li><li>Accompanied by GIA report no. 2203916995, dated 14 February 2020, stating that the 2.17 carat diamond is H color with VVS2 clarity</li></ul>

Platinum and 2.17ct Asscher Cut Diamond and Diamond Ring 

Set to the center with an old European brilliant-cut diamond, ornate hand-engraved scroll and foliate details with millegrain edging and square-shaped band.<ul><li>Diamond weighing a total of 1.04 carats</li><li>British with British maker's mark and assay marks</li><li>18 karat yellow gold and platinum</li><li>Total weight 3 grams</li><li>Accompanied by a GIA report no. 2397681358, dated 3 August 2021, stating that the 1.04 carat diamond is D color with VS1 clarity</li></ul>

Gold and Platinum 1.04ct Diamond Solitaire Ring

Centered with a Fancy Orange-Brown old mine-cut diamond surrounded by rows of white brilliant-cut diamonds.<ul><li>Fancy Orange Brown diamond weighing 1.11 carats</li><li>Surrounding diamonds weighing a total of approximately 0.62 carat</li><li>British with British maker's mark and assay mark</li><li>18 karat yellow gold and platinum</li><li>Total weight 5.2 grams</li><li>Size 5 3/4</li><li>The colored diamond accompanied by GIA report no. 2225165455, dated 16 December 2021, stating that the 1.11 carat diamond is of Fancy Orange-Brown color with VS1 clarity</li></ul>

Gold, Platinum, 1.11ct Fancy Orange-Brown Diamond and Diamond Double Cluster Ring

Centered with a bright and lovely old mine cushion-cut diamond in a yellow gold mount with double-bar gallery and D-shape band.<ul><li>Diamond weighing 1.11 carats</li><li>British with British maker's mark with assay marks</li><li>14 karat yellow gold</li><li>Total weight 3 grams</li><li>Accompanied by a GIA report no. 6147926239, dated 8 August 2012, stating the 1.11 carat diamond is D color and with VS1 clarity</li></ul>

Gold and 1.11ct Diamond Ring

Centered with a kite-shaped, step-cut fancy gray-blue diamond within a geometric surround of single-cut fancy colored pink diamonds.<ul><li>Kite-shaped, step-cut fancy gray-blue diamond weighing 0.62 carat</li><li>Pink diamonds weighing a total of approximately 0.43 carat</li><li>British with British maker's mark and assay mark</li><li>18 karat rose gold and platinum rubover</li><li>Total weight 4.54 grams</li><li>Size 5 3/4</li><li>Accompanied by GIA report no. 2213354853, dated 8 January 2021, stating that the 0.62 carat diamond is of Fancy Gray-Blue color with SI1 clarity</li></ul>

Rose Gold and 0.62ct Fancy Gray-Blue Diamond and Pink Diamond Ring

Set to the center with a modern round brilliant-cut diamond in a four-claw setting with 20 round brilliant-cut diamonds.<ul><li>Center diamond weighing 1.07 carats</li><li>Surrounding diamonds weighing a total of approximately 0.05 carat</li><li>Signed Cartier and numbered with French assay marks</li><li>Platinum</li><li>2020</li><li>Total weight 5.9 grams</li><li>Size 5</li><li>Accompanied by Cartier certificate of authenticity and box</li><li>Accompanied by a GIA report no. 1327509527, dated 12 April 2019, stating that the 1.07 carat diamond is F color with VVS1 clarity</li></ul>

Platinum and 1.07ct Diamond Ballerine Solitaire Ring 

Classic fancy color old European brilliant-cut yellow diamond cluster ring.<ul><li>Fancy Intense Yellow diamond weighing 1.24 carats</li><li>Surrounding diamonds weighing a total of approximately 1.75 carats</li><li>British with British maker's mark and assay</li><li>18 karat yellow gold</li><li>Rubover set in platinum</li><li>Total weight 5.4 grams</li><li>Size 6.25</li><li>Accompanied by GIA report no. 2223071764, dated 10 November 2021, stating that the 1.24 carat yellow diamond is of Fancy Intense Yellow color with VS1 clarity</li></ul>

Gold, Platinum, 1.24ct Fancy Intense Yellow Diamond and Diamond Cluster Ring

Centered with a pastel orange oval brilliant cut Padparadscha sapphire, within a halo surround of round brilliant cut diamonds.<ul><li>Padparadscha sapphire weighing 1.80 carats</li><li>Diamonds weighing a total of approximately 0.70 carat</li><li>British with British maker's mark and assay</li><li>Platinum and 18 karat rose gold</li><li>Total weight 5.4 grams</li><li>Size 5 3/4</li><li>Accompanied by GRS report no. GRS2013-011765 dated 8 January 2013 stating that the 1.80ct gemstone is natural, of Madagascar origin and untreated</li></ul>

Platinum, Rose Gold, 1.80ct Unheated Padparadscha Sapphire and Diamond Cluster Ring

Set with a brilliant-cut diamond weighing 4.71 carats between baguette diamond shoulders.<ul><li>Round brilliant-cut diamond weighing 4.71 carats</li><li>Baguette diamonds estimated to weigh a total of approximately 0.50 carat</li><li>Platinum 950 (not stamped)</li><li>Gross weight approximately 7 grams</li><li>Ring size 52</li><li>Accompanied by GIA report no. 5222258420, dated 3 February 2022, stating that the 4.71 carat round brilliant-cut diamond is J color and VS2 clarity</li></ul>

Platinum and 4.71ct Diamond Ring

Centering a Light Yellow radiant-cut diamond, accented by 68 round brilliant-cut colorless diamonds and yellow diamonds.<ul><li>Radiant-cut diamond weighs 2.03 carats</li><li>Accent diamonds weighing a total of approximately 0.50 carat</li><li>18 karat yellow gold and white gold</li><li>Total weight 11.9 grams</li><li>Size 6½</li><li>Accompanied by a GIA report</li></ul>

White Gold, Gold, 2.03ct Light Yellow Radiant Cut Diamond and Diamond Ring

Of a halo and split shank style, centering an emerald-cut diamond, accented by 42 round brilliant-cut diamonds.<ul><li>Emerald-cut diamond weighs 2.14 carats</li><li>Round brilliant-cut diamonds weighing a total of approximately 0.75 carats</li><li>Platinum</li><li>Total weight 7.3 grams</li><li>Size 5</li><li>Accompanied by a GIA report</li></ul>

Platinum and 2.14ct Emerald Cut Diamond Engagement Ring

Composed of European-cut diamonds.<ul><li>Diamonds weighing a total of approximately 0.80 carat</li><li>Platinum</li><li>Total weight 3.80 grams</li><li>Size 3¾</li></ul>

Platinum and Diamond Ring

Centering an octagonal-cut diamond, flanked by 2 octagonal-cut diamonds, accented by round brilliant-cut diamonds.<ul><li>Center diamonds weighs approximately 2.30 carats</li><li>Side diamonds weighing a total of approximately 2.15 carats</li><li>Accent diamonds weighing a total of approximately 0.40 carat</li><li>18 karat white gold</li><li>Total weight 6.5 grams</li><li>Size 6½</li></ul>

White Gold, 2.30ct Yellow Diamond and Diamond Engagement Ring

Centering three oval-shaped light yellow diamonds and accented by round brilliant-cut diamonds.<ul><li>Center light yellow diamond weighing approximately 3.00 carats</li><li>Two oval-shaped light yellow diamonds weighing approximately 1.35 carats</li><li>Round-cut near-colorless diamonds weighing a total of approximately 0.85 carat</li><li>Platinum, 18 karat yellow gold</li><li>Total weight 9.70 grams</li><li>Size 6½</li></ul>

Platinum, Gold, Yellow Diamond and Diamond Ring

Centering a round brilliant-cut diamond and accented by round brilliant-cut diamonds.<ul><li>Center diamond weighing 3.00 carats</li><li>Round brilliant-cut diamonds weighing a total of approximately 0.35 carat</li><li>Platinum</li><li>Total weight 7.30 grams</li><li>Size 6¼</li><li>Accompanied by GIA report no. 15124770, dated 4 August 2006, stating that the 3.00 carat diamond is H color and VS2 clarity</li></ul>

Platinum, 3.00ct Diamond and Diamond Ring

Centering an emerald-cut diamond, flanked by 2 yellow diamonds, accented by round brilliant-cut diamonds.<ul><li>Emerald-cut diamond weighs 3.03 carats</li><li>Yellow diamonds weighing a total of approximately 0.50 carat</li><li>Round brilliant-cut diamonds weighing a total of approximately 0.75 carat</li><li>White gold</li><li>Total weight 6.8 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 5161839871, dated 3 December 2014, stating that the 3.03 carat diamond is M color and VS1 clarity</li></ul>

White Gold, 3.03ct Emerald Cut Diamond, Yellow Diamond and Diamond Engagement Ring

Centering a pear-shaped diamond and accented by round brilliant-cut diamonds.<ul><li>Center diamond weighing 3.16 carats</li><li>Round-cut diamonds weighing a total of approximately 0.55 carat</li><li>Platinum</li><li>Total weight 8.00 grams</li><li>Size 6¼</li><li>Accompanied by GIA report no. 6157851381, dated 8 January 2014, stating that the 3.16 carat diamond is H color and SI1 clarity</li></ul>

Platinum, 3.16ct Diamond and Diamond Ring

Centering an asscher-cut diamond, accented by round brilliant-cut diamonds.<ul><li>Asscher-cut diamond weighs 1.73 carats</li><li>Round brilliant-cut diamonds weighing a total of approximately 1.35 carats</li><li>18 karat white gold</li><li>Total weight 4.8 grams</li><li>Size 6½</li></ul>

White Gold, 1.73ct Asscher Cut Diamond and Diamond Engagement Ring

Centering a pear-shaped diamond, accented by round brilliant-cut diamond.<ul><li>Pear-shaped diamond weighs 2.07 carats</li><li>Round brilliant-cut diamonds weighing a total of approximately 0.75 carat</li><li>Platinum</li><li>Total weight 8.1 grams</li><li>Size 6</li><li>Accompanied by GIA report no. 1156596495, dated 13 August 2013, stating that the 2.07 carat diamond is G color and SI1 clarity</li></ul>

Platinum, 2.07ct Pear Shape Diamond and Diamond Engagement Ring

Centering a round brilliant-cut diamond and accented by round-cut diamonds.<ul><li>Center diamonds weighing 2.02 carats</li><li>Round-cut diamonds weighing a total of approximately 1.40 carats</li><li>18 karat white gold</li><li>Total weight 6.70 grams</li><li>Size 5¼</li><li>Having a horseshoe ring sizer</li><li>Accompanied by GIA report no. 15090968, dated 25 April 2006, stating that the 2.02 carat diamond is of G color and VS2 clarity</li></ul>

White Gold, 2.02ct Diamond and Diamond Ring

Centering a square brilliant-cut diamond and accented by round brilliant-cut diamonds.<ul><li>Center diamond weighing approximately 3.00 carats</li><li>Round cut diamonds weighing a total of approximately 0.40 carat</li><li>Platinum</li><li>Total weight 7.10 grams</li><li>Size 6¼</li></ul>

Platinum and 3.00ct Diamond Ring

Centering an Old European cut diamond, accented by 6 single cut diamonds.<ul><li>Center diamond weigh 1.01 carats</li><li>Accented diamonds weighing a total of approximately 0.15 carat</li><li>Platinum</li><li>Total weight 4.59 grams</li><li>Size 6¼</li><li>Accompanied by GIA report no. 2213071060, dated 28 July 2020, stating that the 1.01 carat diamond is I color and VVS2 clarity</li></ul>

Platinum, 1.01ct Old European Cut Diamond Engagement Ring

Centering a round brilliant-cut diamond sided by 2 half-moon diamonds, accented by round brilliant diamonds.<ul><li>Center diamond weighs 3.05 carats</li><li>Diamonds weighing a total of approximately 1.25 carats</li><li>18 karat white gold</li><li>Size 6½</li><li>Accompanied by EGL report no. US-922493102, stating that the 3.05 carat diamond is I color and VS2 clarity</li></ul>

White Gold, 3.05ct Round Brilliant Cut Diamond and Diamond Engagement Ring

Centering a cushion-cut diamond, accented by round brilliant.<ul><li>Center diamond weighs 4.01 carats</li><li>Accented diamonds weighing a total of approximately 0.45 carat</li><li>18 karat white gold</li><li>Total weight 5.62 grams</li><li>Size 6¼</li><li>Accompanied by EGL report stating that the 4.01 carat diamond is H color and VS1 clarity</li></ul>

White Gold, 4.01ct Cushion Diamond and Diamond Engagement Ring 

Centering an oval-shaped sapphire, accented by 40 round brilliant-cut diamonds.<ul><li>Sapphire weighs 9.96 carats</li><li>Diamonds weighing a total of approximately 1.60 carats</li><li>18 karat white gold</li><li>Total weight 12.12 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 2181389281, dated 15 May 2017, stating that the 9.96 carat sapphire is of Sri Lankan (Ceylon) origin with no indications of heating</li></ul>

White Gold, 9.96ct Ceylon Sapphire and Diamond Ring 

Centering with 2 round brilliant-cut diamonds, accented by baguette diamonds.<ul><li>Round diamonds weighing a total of 4.00 carats</li><li>Accent diamonds weighing a total of approximately 0.80 carat</li><li>Platinum</li><li>Size 6½</li><li>Accompanied by EGL report no. US-91704080D, stating that the 2.00 carat diamond is H color and VS2 clarity</li><li>Accompanied by EGL report no. US-79945801D, stating that the 2.00 carat diamond is H color and VS2 clarity</li></ul>

Platinum and 4.00ct Round Brilliant Cut Diamond Bypass Ring

Centering a princess-cut diamond, accented by 8 baguette diamonds.<ul><li>Center diamond weighs 3.26 carats</li><li>Accent diamonds weighing a total of approximately 1.25 carats</li><li>14 karat white gold</li><li>Total weight 6.00 grams</li><li>Size 6¼</li><li>Accompanied by GIA report no. 6224894224, dated 06 April 2023, stating that the 3.26ct diamond is G color and VS2 clarity</li></ul>

White Gold and 3.26ct Princess Cut Diamond Engagement Ring 

Centering a round brilliant-cut diamond, accented by 2 baguette diamonds.<ul><li>Center diamond weighs 5.60 carats</li><li>Accent diamonds weighing a total of approximately 0.30 carat</li><li>Platinum</li><li>Total weight 7.07 grams</li><li>Size 9</li><li>Accompanied by GIA report no. 5221894265, dated 06 April 2023, stating that the 5.60ct diamond is Q to R color and SI1 clarity</li></ul>

Platinum and 5.60ct Round Brilliant Cut Diamond Engagement Ring

Composed of round brilliant-cut diamonds.<ul><li>Diamonds weighing a total of 0.71 carat</li><li>Platinum</li><li>Stamped with weights</li><li>Total weight 7.90 grams</li><li>Size 6¼</li></ul>

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