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

Diamond brooch and a diamond ring 

Emerald and diamond ring, first half of the 20th century

Diamond ring 

Emerald and diamond ring

Natural pearl and diamond ring 

Faint Pink diamond and diamond ring 

Sapphire and diamond ring, circa 1930

Diamond ring

Coloured diamond and tanzanite ring

Sapphire and diamond ring 

Group of rings 

Fancy Intense Yellow diamond and diamond ring 

Diamond Ring and Two Diamond Band Rings

Fancy Deep Yellow diamond and diamond ring

Fancy Intense Yellow and coloured diamond ring 

Sapphire and diamond ring, 'Trombino', 1965

Pink sapphire and diamond ring

Emerald and diamond ring 

Pink sapphire and diamond ring 

Centering an oval cut Fancy Intense Yellow diamond and accented by triangle cut white diamonds.<ul><li>Fancy Intense Yellow diamond weighing 2.69 carats</li><li>Additional white diamonds weighing a total of approximately 0.60 carat</li><li>Platinum and 18 karat yellow gold</li><li>Total weight 7.74 grams</li><li>Size 7</li><li>Accompanied by GIA report no. 1122766419, dated 14 December 2018, stating that the 2.59 carat diamond is Fancy Intense Yellow color and SI1 clarity with Faint Fluorescence</li></ul>

Platinum, 2.69ct Oval Cut Fancy Intense Yellow Diamond and Diamond Engagement Ring

Centering a cushion cut Fancy Intense Yellow diamond, accented by baguette and round brilliant cut white diamonds.<ul><li>Fancy Intense Yellow diamond weighing 1.00 carat</li><li>White diamonds weighing a total of approximately 1.05 carats</li><li>18 karat white and yellow gold</li><li>Total weight 4.22 grams</li><li>Size 7</li><li>Accompanied by GIA report no. 3425095838, dated 3 March 2022 stating that the 1.00 carat diamond is Fancy Intense Yellow color and SI2 clarity with No Fluorescence</li></ul>

White Gold, Gold, 1.00ct Cushion Cut Fancy Intense Yellow Diamond and Diamond Engagement Ring

Centering a cushion cut Fancy Yellow diamond, surrounded by round brilliant cut pink and white diamonds.<ul><li>Fancy Yellow diamond weighing 5.03 carats</li><li>Pink diamonds weighing a total of approximately 0.15 carat</li><li>White diamonds weighing a total of approximately 0.45 carat</li><li>18 karat pink and white gold</li><li>Total weight 9.42 grams</li><li>Size 6¾</li><li>Accompanied by GIA report no. 2175416262, dated 16 December 2015 stating that the 5.03 carat diamond is Fancy Yellow color and SI1 clarity with No Fluorescence</li></ul>

White Gold, Pink Gold, 5.03ct Cushion Cut Fancy Yellow Diamond, Pink Diamond and Diamond Engagement Ring

Centering a cushion cut Fancy Yellow diamond, surrounded by oval shaped rose cut white diamonds and round brilliant cut yellow diamonds, completed by round brilliant cut white diamonds on the shank.<ul><li>Cushion cut Fancy Yellow diamond weighing 2.00 carats</li><li>Additional round cut yellow diamonds weighing a total of approximately 0.55 carat</li><li>Rose cut white diamonds weighing a total of approximately 1.20 carats</li><li>Round brilliant cut white diamonds weighing a total of approximately 0.20 carat</li><li>18 karat white gold</li><li>Total weight 6.61 grams</li><li>Size 7</li><li>Accompanied by GIA report no. 2181462357, dated 8 June 2017 stating that the 2.00 carat diamond is Fancy Yellow color and SI1 clarity with No Fluorescence</li></ul>

Gold, White Gold, 2.00ct Cushion Cut Fancy Yellow Diamond, Yellow Diamond and Diamond Engagement Ring

<ul><li>Sertie d'un saphir taille coussin de forme rectangulaire pesant 6.07 carats, épaulé de diamants taille brillant</li><li>Poinçons de maître et poinçon français pour l'or 18K (750°/00)</li><li>Tour de doigt 53, poids brut 5.42 g</li><li>Accompagnée d'un certificat Lotus no. 856-1377, en date du 8 mars 2016, indiquant l'origine de Ceylan et l'absence de traitement thermique pour ce saphir.</li></ul> <ul><li>Set with a rectangular cushion-shaped sapphire weighing 6.07 carats, shouldered with brilliant-cut diamonds</li><li>Maker's mark and French assay mark for 18 carat gold</li><li>Size 53, gross weight 5.42 grams</li><li>Accompanied by a Lotus report no. 856-1377, dated 8 March 2016, stating that the sapphire is of Ceylon origin with no indication of heating</li></ul>

Bague saphir et diamants | Sapphire and diamond ring

<ul><li>Ornée d'un diamant Fancy deep Yellow pesant 2.02 carats, entouré et épaulé de diamants taille brillant</li><li>Poinçon de maître, poinçon français pour l'or 18K (750°/00)</li><li>Tour de doigt 52, poids brut 3.81 g</li><li>Accompagnée d'un certificat GIA no. 6157601434, en date du 16avril 2013, indiquant la couleur naturelle Fancy Deep Yellow et la pureté SI2 pour ce diamant</li></ul> <ul><li>Ornated with a Fancy Deep Yellow diamond weighing 2.02 carats, surrounded and shouldered with brilliant-cut diamonds</li><li>Maker's mark, French assay mark for 18 carat gold</li><li>Size 52, gross weight 3.81 grams</li><li>Accompanied by GIA report no. 6157601434, dated 16 April 2013, stating that the diamond is Fancy Deep Yellow, Natural Colour and SI2 Clarity</li></ul>

Bague diamant Fancy Deep Yellow  et diamants | Fancy Deep Yellow diamond and diamond ring

Centering an oval cut diamond. <ul><li>Oval diamond weighs 5.01 carats</li><li>Platinum</li><li>Accompanied by GIA report no. 1216280309, dated 16 November 2020, stating that the 5.01 carat diamond is E color and VS2 clarity</li></ul>

Platinum and 5.01ct Oval Cut Diamond Engagement Ring

Centering a round brilliant cut diamond and accented by two tapered baguette cut diamonds.<ul><li>Center diamond weighing 3.01 carats</li><li>Additional diamonds weighing a total of approximately 0.15 carat</li><li>Platinum</li><li>Total weight 5.00 grams</li><li>Size 6</li><li>Accompanied by GIA report no. 5131525761, dated 21 June 2011 stating that the 3.01 carat diamond is F color and VS2 clarity with No Fluorescence</li></ul>

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René Boivin