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

Featuring an&nbsp;oval-shaped light blue oval sapphire highlighted by a cluster of 16 round brilliant and 6 baguette diamonds.<ul><li>Diamonds weighing a total of approximately 2.10 carats</li><li>Sapphire weighing 7.23 carats</li><li>Engraved 7.23</li><li>18 karat white gold, hallmarked</li><li>Total weight 8.70 grams</li><li>Size 7¾</li><li>Accompanied by GCS report number 5782-726, dated 15.02.2022, stating the oval mixed cut 7.23 carats Light Blue Sapphire to be of natural origin from Sri Lanka (Ceylon) with no indication of heating</li></ul>

Vintage White Gold, 7.23ct Ceylon Sapphire and Diamond Cluster Ring

Centering an Old European cut diamond, accented by 22 single cut diamonds and filigree in Greek key pattern.<ul><li>Old European cut diamond weighs approximately 3.10 carats</li><li>Single cut diamonds weighing a total of approximately 0.30 carat</li><li>Platinum</li><li>Total weight 5.30 grams</li><li>Size 4½</li><li>Accompanied by vintage box</li></ul>

Platinum and 3.01ct Old European Cut Diamond Ring

Centering a square emerald cut diamond, accented by 18 single cut diamonds.<ul><li>Emerald cut diamond weighs approximately 1.40 carats</li><li>Single cut diamonds weighing a total of approximately 0.45 carat</li><li>Size 6 1/4</li><li>Total weight 3.31 grams</li><li>Platinum</li></ul>

Engagement Rings

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