Unveil the excellence of craftsmanship and design through a curated selection of exceptional&nbsp;<a href="https://www.sothebys.com/en/buy/luxury/jewelry/engagement/engagement-rings/unique-solitaires/diamond" rel="noopener noreferrer" target="_blank">diamonds</a>,&nbsp;<a href="https://www.sothebys.com/en/buy/luxury/jewelry/engagement/engagement-rings/unique-solitaires/sapphire" rel="noopener noreferrer" target="_blank">sapphires</a>,&nbsp;<a href="https://www.sothebys.com/en/buy/luxury/jewelry/engagement/engagement-rings/unique-solitaires/emerald" rel="noopener noreferrer" target="_blank">emeralds</a>&nbsp;and&nbsp;<a href="https://www.sothebys.com/en/buy/luxury/jewelry/engagement/engagement-rings/unique-solitaires/ruby" rel="noopener noreferrer" target="_blank">rubies</a>. Shop the perfect stone that will complete your love story, special occasion, personal achievements and more.

Diamonds

Yellow Diamonds

Sapphires

Emeralds

Rubies

Colored Gemstones

Centering an oval shaped Madagascar <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> and flanked by oval cut diamonds.<ul><li>Madagascar sapphire weighing 4.27 carats</li><li>Diamonds weighing a total of 1.10 carats</li><li>18 karat white gold</li><li>Stamped with stone weights</li><li>Total weight 5.85 grams</li><li>Size 7</li><li>Accompanied by GIA report no. 3495226597, dated 13 May 2024 stating that the 4.27 carat sapphire is Madagascar origin and Heated</li></ul>

White Gold, 4.27ct Madagascar Sapphire and Diamond Three Stone Ring

Centering an emerald cut Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a>, accented by emerald cut diamonds.<ul><li>Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> weighing 6.41 carats</li><li>Diamonds weighing 1.99 carats</li><li>Platinum and 18 karat yellow gold</li><li>Total weight 8.13 grams</li><li>Size 6¼</li><li>Accompanined by AGL report no. 1144759, dated 9 December 2024, stating that the 6.41 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> is Colombia origin and shows Traditional, Insignificant Clarity Enhancement</li><li>Accompanied by GIA report no. 16423708, dated 7 December 2007, stating that the 1.01 carat diamond is E color and VS1 clarity with No Fluorescence</li><li>Accompanied by GIA report no. 2225747288, dated 13 December 2022, stating that the 0.98 carat diamond is G color and VS1 clarity with No Fluorescence</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, Gold, 6.41ct Colombian Emerald and Diamond Ring

Impressive Diamond Ring 

Composed of an oval shaped Zambian<a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank"> emerald</a> and accented by trapezoid cut diamonds.<ul><li>Zambian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> weighing 3.05 carats</li><li>Diamonds weighing a total of approximately 0.35 carat</li><li>Platinum</li><li>Total weight 8.17 grams</li><li>Size 6½</li><li>Accompanied by C. Dunaigre report no. CDC 2501208, dated 15 January 2025, stating that the 3.05 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> is Zambia origin and shows Indications of Minor Clarity Enhancement</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 3.05ct Zambian Emerald and Diamond Ring

 Emerald and Diamond Ring 

Ruby and Diamond Ring

Composed of an oval shaped Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> and accented by trapezoid cut diamonds.<ul><li>Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 4.25 carats</li><li>Diamonds weighing a total of approximately 0.85 carats</li><li>Platinum</li><li>Total weight 9.05 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 2233476766, dated 9 January 2025, stating that the 4.25 carat sapphire is Sri Lanka (Ceylon) origin and is Heated</li></ul>

Platinum, 4.25ct Ceylon Sapphire and Diamond Ring

Composed of an emerald cut Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> and accented by trapezoid cut diamonds.<ul><li>Ceylon<a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank"> sapphire</a> weighing 3.74 carats</li><li>Diamonds weighing a total of approximately 0.60 carats</li><li>Platinum</li><li>Total weight 8.80 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 6237476753, dated 10 January 2025, stating that the 3.74 carat sapphire is Sri Lanka (Ceylon) origin and is Heated</li></ul>

Platinum, 3.74ct Ceylon Sapphire and Diamond Ring

Centering a cushion shaped Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, accented by old mine cut and round brilliant cut diamonds.<ul><li>Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 7.01 carats</li><li>Old mine cut diamonds weighing a total of approximately 2.45 carats</li><li>Round brilliant cut diamonds weighing a total of approximately 0.80 carat</li><li>Platinum</li><li>Stamped with sapphire weight</li><li>Total weight 17.24 grams</li><li>Size 6¼</li><li>Accompanied by AGL report no. 1148222, dated 27 May 2025, stating that the 7.01 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Ceylon (Sri Lanka) origin with indication of heat treatment</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 7.01ct Ceylon Sapphire and Diamond Ring

Composed of an emerald cut <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a>, accented by calibré cut and two baguette cut diamonds, enhanced by round brilliant cut diamonds.<ul><li><a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">Ruby</a> weighing 0.75 carat</li><li>Diamonds weighing a total of approximately 0.55 carat</li><li>Platinum</li><li>Total weight 3.77 grams</li><li>Size 6 ½</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 0.75ct Ruby and Diamond Ring 

Elegant Diamond Ring 

Featuring a cushion shaped Burmese pigeon's blood <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a>, accented by 118 round brilliant cut diamonds.<ul><li><a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">Ruby</a> weighing 6.06 carats</li><li>Diamonds weighing a total of approximately 1.15 carats</li><li>Platinum</li><li>Total weight 6.00 grams</li><li>Size 6</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by GRS report no.GRS2008-031089, dated 29 February 2008, stating that the 6.05 carat natural ruby originated from Burma with heat treatment</li><li>Accompanied by GÜBELIN report no.0803684, dated 13 March 2008, stating that the 6.06 carat natural ruby originated from Burma with indications of heat treatment</li></ul>

Platinum, 6.06ct Burmese Pigeon's Blood Ruby and Diamond Ring

Composed of an emerald cut Zambian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a>, accented by trapezoid cut diamonds.<ul><li>Zambian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald </a>weighing 4.03 carats</li><li>Diamonds weighing a total of approximately 0.80 carat</li><li>Platinum</li><li>Total weight 9.77 grams</li><li>Size 6½</li><li>Accompanied by C. Dunaigre report no. CDC 2501209, dated 15 January 2025, stating that the 4.03 carat emerald is Zambian origin and shows Indications of Minor Clarity Enhancement</li></ul>

Platinum 4.03ct Zambian Emerald and Diamond Ring

Bulgari

Sapphire and Diamond Ring 'Trombino' 

Centering a no oil emerald cut Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> and accented by tapered baguette cut diamonds.<ul><li>Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> weighing 2.40 carats</li><li>Diamonds weighing a total of approximately 2.60 carats</li><li>18 karat white gold</li><li>Total weight 9.11 grams</li><li>Size 6</li><li>Accompanied by AGL report no. 1129998, dated 22 March 2022, stating that the 2.40 carat emerald is Colombian origin and shows No Clarity Enhancement</li><li>Accompanied by one Sotheby's box</li></ul>

White Gold, 2.40ct Colombian Emerald and Diamond Ring

Composed of a square emerald cut Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, accented by trapezoid cut diamonds.<ul><li>Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 4.61 carats</li><li>Diamonds weighing a total of approximately 0.75 carat</li><li>Platinum</li><li>Total weight 8.00 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 1232513977, dated 4 March 2025, stating that the 4.61 carat sapphire is Sri Lanka (Ceylon) origin and is Heated</li></ul>

Platinum, 4.61ct Ceylon Sapphire and Diamond Ring

Composed of a cushion shaped Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, accented by trapezoid cut diamonds.<ul><li>Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 4.55 carats</li><li>Diamonds weighing a total of approximately 0.65 carat</li><li>Platinum</li><li>Total weight 8.89 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 2231514001, dated 6 March 2025, stating that the 4.55 carat sapphire is Sri Lanka (Ceylon) origin and is Heated</li></ul>

Platinum, 4.55ct Ceylon Sapphire and Diamond Ring

Emerald and Diamond Ring 

Featuring an oval shaped Ceylon orange-yellow <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, surrounded by round brilliant cut diamonds, further enhanced by leaf motifs under the gallery and shank set with round brilliant cut diamonds.<ul><li>Orange-yellow <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 8.54 carats</li><li>Diamonds weighing a total of approximately 0.40 carat</li><li>18 karat white gold</li><li>Total weight 7.62 grams</li><li>Size 6½</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by GRS report no. GRS2007-071250, dated 23 July 2007, stating that the 8.54 carat natural Vivid Orange-Yellow sapphire originate from Sri Lanka has indications of heat treatment</li></ul>

White Gold, 8.54ct Ceylon Orange-Yellow Sapphire and Diamond Ring

Jogani

Featuring an oval shaped Burmese pink <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, surrounded by circular old european and transitional cut diamonds.<ul><li>Pink <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 2.47 carats</li><li>Diamonds weighing a total of approximately 0.70 carat</li><li>Signed <a href="https://www.sothebys.com/en/buy/luxury/jewelry/jogani" rel="noopener noreferrer" target="_blank">Jogani</a></li><li>18 karat yellow gold</li><li>Total weight 4.71 grams</li><li>Size 6¼</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by AGL report no. 1148225, dated 19 May 2025, stating that the 2.47 carat pink sapphire originated from Burma with no evidence of heat treatment</li></ul>

Gold, 2.47ct Burmese Pink Sapphire and Diamond Ring

Centering a cushion cut pink tourmaline and accented by round brilliant cut diamonds.<ul><li>Pink tourmaline weighing approximately 4.15 carats</li><li>Diamonds weighing a total of approximately 0.65 carat</li><li>Platinum</li><li>Total weight 4.65 grams</li><li>Size 6</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 4.15ct Tourmaline and Diamond Ring

Centering a round shaped Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, accented by round brilliant and baguette cut diamonds.<ul><li>Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 6.39 carats</li><li>Diamonds weighing a total of approximately 1.20 carats</li><li>Platinum</li><li>Stamped with stone weight</li><li>Total weight 6.24 grams</li><li>Size 6½</li><li>Accompanied by AGL report no. 1148223, dated 27 May 2025, stating that the 6.39 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Ceylon (Sri Lanka) origin with Heat treatment</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 6.39ct Ceylon Sapphire and Diamond Ring

Composed of an oval shaped&nbsp;<a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> and accented by round brilliant cut diamonds.<ul><li>Sapphire weighing approximately 1.75 carat</li><li>Diamonds weighing a total of approximately 1.60 carat</li><li>18 karat white gold</li><li>Total weight 5.45 grams</li><li>Size 6 ½</li><li>Accompanied by one Sotheby's box</li></ul>

White Gold, 1.75ct Sapphire and Diamond Ring 

Featuring a cushion shaped Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, surrounded by 14 round brilliant cut diamonds.<ul><li><a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">Sapphire</a> weighing 27.17 carats</li><li>Diamonds weighing a total of 4.35 carats</li><li>Platinum</li><li>Total weight 18.00 grams</li><li>Size 6</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by AGL Colored Stone grading report no.CS39427, dated 29 January 2008, stating that the 27.17 carat natural sapphire is classified as Ceylon Type with heat treatment</li><li>Accompanied by 14 GIA report, stating that 14 round brilliant cut diamonds weighing from 0.30 carat to 0.30 carat are E-F color and VVS2-VS1 clarity with no fluorescence </li></ul>

Platinum, 27.17ct Ceylon Sapphire and Diamond Ring

Centering an oval shaped Colombian emerald, surrounded by 23 round brilliant cut diamonds.<ul><li>Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">Emerald</a> weighing approximately 4.30 carats</li><li>Diamonds weighing a total of approximately 0.80 carat</li><li>18 karat yellow gold</li><li>Total weight 8.92 grams</li><li>Size 7</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by GIA report no.6237587940, dated 30 May 2025, stating that the natural emerald is originated from Colombia with Minor clarity enhancement</li></ul>

Gold, 4.30ct Colombian Emerald and Diamond Ring

Centering a Zambian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a>, surrounded by 12 pear cut diamonds and 8 round brilliant cut diamonds, additional round brilliant cut diamonds on the shank.<ul><li><a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">Emerald</a> weighing 2.64 carats</li><li>Pear cut diamonds weighing a total of approximately 1.30 carats</li><li>Round brilliant cut diamonds weighing a total of approximately 0.60 carat</li><li>18 karat white gold</li><li>Total weight 6.22 grams</li><li>Size 6</li><li>Accompanied by GRS report no.2021-118015, dated 01 November 2021, stating that the 2.64 carat natural emerald is of Zambian origin, exhibiting intense to vivid green color with Minor oil treatment</li><li>Accompanied by one Sotheby's box</li></ul>

White Gold, 2.64ct Zambian Emerald and Diamond Ring

Featuring Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> in the center, flanked by 2 trapezoid cut diamonds.<ul><li><a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">Emerald</a> weighing 16.00 carats</li><li>Diamonds weighing a total of approximately 1.20 carats</li><li>18 karat white gold</li><li>Total weight 15.44 grams</li><li>Size 7¾</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by GÜBELIN report no.21052077, dated 27 May 2021, stating that the 16.00 carat emerald originate from Colombia has indications of minor clarity enhancement</li></ul>

White Gold, 16.00ct Colombian Emerald and Diamond Ring

Ruby and Diamond Ring 

Ruby Ring 

Diamond ring 

Bezel set with a Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a>.<ul><li><a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emeraldhttps://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">Emerald</a> weighing 2.42 carats</li><li>Maker's mark for <a href="https://www.sothebys.com/en/buy/luxury/jewelry/jogani" rel="noopener noreferrer" target="_blank">Jogani</a></li><li>18 karat yellow gold</li><li>Total weight 2.64 grams</li><li>Size 6½</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by AGL report no. 1147579, dated April 21, 2025, stating that the emerald is of Colombian origin with minor clarity enhancement</li></ul>

Gold and 2.42ct Colombian Emerald Ring

Centering an oval shaped pink tourmaline, accented by trapezoid cut diamonds.<ul><li>Pink tourmaline weighing approximately 5.25 carats</li><li>Diamonds weighing a total of approximatey 0.70 carat</li><li>Platinum</li><li>Total weight 6.82 grams</li><li>Size 6</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 5.25ct Tourmaline and Diamond Ring

Centering an oval shaped pink tourmaline, accented by pear and round brilliant cut diamonds.<ul><li>Pink tourmaline weighing approximately 2.70 carats</li><li>Diamonds weighing a total of approxiamtely 2.25 carats</li><li>French hallmark</li><li>Platinum</li><li>Total weight 8.19 grams</li><li>Size 6¼</li><li>Accompanied by one Sotheby's box</li></ul>

Colored Gemstones

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Bulgari

Jogani

Jogani