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

Unique Solitaires

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 a cushion shaped Kashmir sapphire and flanked by two half moon cut diamonds.<ul><li>Kashmir sapphire weighing 2.68 carats</li><li>Diamonds weighing a total of approximately 0.50 carat</li><li>Platinum</li><li>Total weight 5.20 grams</li><li>Size 5¾</li><li>Accompanied by AGL report no. 1088009, dated 31 October 2017, stating that the 2.68 carat sapphire is Kashmir origin and shows No Heat Treatment</li></ul>

Platinum, 2.68ct Kashmir Sapphire 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 round brilliant cut diamonds.<ul><li>Ceylon sapphire weighing 4.06 carats</li><li>Diamonds weighing a total of approximately 1.10 carats</li><li>18 karat white gold</li><li>Total weight 4.76 grams</li><li>Size 6¾</li><li>Accompanied by C. Dunaigre report no. CDC 2111644, dated 8 November 2021, stating that the 4.06 carat sapphire is Ceylon origin with Vivid Blue color and shows indications of heating</li></ul>

White Gold, 4.06ct Ceylon Sapphire and Diamond Ring

Centering a round cut Zambian emerald, accented by square and trapezoid cut diamonds.<ul><li>Zambian emerald weighing 2.35 carats</li><li>Diamonds weighing a total of approximately 0.50 carat</li><li>Platinum</li><li>Total weight 4.96 grams</li><li>Size 5¼</li><li>Accompanied by AGL report no. 1140876, dated 20 May 2024, stating that the emerald is Zambian origin and shows Minor clarity enhancement</li></ul>

Platinum, 2.35ct Zambian Emerald and Diamond Ring

Centering an 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 two 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 1.62 carats</li><li>Diamonds weighing a total of approximately 0.60 carat</li><li>18 karat white gold</li><li>Total weight 4.34 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 7522625972, dated 7 July 2025, stating that the 1.62 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Sri Lanka (Ceylon) origin and is Heated</li><li>Accompanied by one Sotheby's box</li></ul>

White Gold, 1.62ct Ceylon Sapphire and Diamond Ring

Van Cleef & Arpels

Centering a pear shaped Colombian <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a>, 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 5.38 carats</li><li>Diamonds weighing a total of approximately 4.00 carats</li><li>Signed <a href="https://www.sothebys.com/en/buy/luxury/jewelry/van-cleef-&amp;-arpels" rel="noopener noreferrer" target="_blank">Van Cleef &amp; Arpels</a> with serial number</li><li>Platinum</li><li>Circa 1970s</li><li>Total weight 13.55 grams</li><li>Size 7¼</li><li>Accompanied by AGL report no. 1139230, dated 12 April 2024, stating that the 5.38ct <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/emerald" rel="noopener noreferrer" target="_blank">emerald</a> is Colombian origin and shows No Clarity Enhancement</li><li>Accompanied by a copy of <a href="https://www.sothebys.com/en/buy/luxury/jewelry/van-cleef-&amp;-arpels" rel="noopener noreferrer" target="_blank">Van Cleef &amp; Arpels</a> Valuation for Insurance paperwork dated September 14, 1978</li><li>Accompanied by one Sotheby's box</li></ul>

Vintage Platinum, 5.38ct Colombian Emerald and Diamond Ring

Composed of an oval-shaped Burmese ruby and accented by oval-cut diamonds.<ul><li>Burmese ruby weighing 2.40 carats</li><li>Diamonds weighing a total of approximately 0.70 carat</li><li>Platinum and 18 karat yellow gold</li><li>Total weight 5.90 grams</li><li>Size 5¾</li><li>Accompanied by AGL report no. 1116260, dated 6 August 2021, stating that the 2.40 carat ruby is of Burmese (Myanmar) origin with no heat enhancement or clarity enhancement</li><li>Accompanied by GRS report no. GRS2018-126577, dated 14 December 2018, stating that the 2.41 carat ruby is of Burmese (Myanmar) origin with no indication of thermal treatment and of pigeon's blood color</li></ul>

Platinum, Gold, 2.40ct Burmese Ruby and Diamond Ring

Tiffany & Co.

Centering a round shaped Mozambique <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a>, accented by round brilliant cut diamonds.<ul><li>Mozambique <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> weighing 1.17 carats</li><li>Diamonds weighing a total of approximately 0.16 carat</li><li>Signed <a href="https://www.sothebys.com/en/buy/luxury/jewelry/tiffany-&amp;-co" rel="noopener noreferrer" target="_blank">Tiffany &amp; Co.</a> with serial number</li><li>Platinum</li><li>Stamped with carat weights</li><li>Total weight 3.12 grams</li><li>Size 6</li><li>Accompanied by GIA report no. 5211281067, dated 17 November 2020, stating that the 1.17 carat&nbsp;<a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> is of Mozambique origin, with indications of heating</li><li>Accompanied by a signed box</li></ul>

Platinum, 1.17ct Mozambique Ruby and Diamond Ring

Composed of an oval-shaped Burmese <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a>, accented by pear and round brilliant-cut diamonds.<ul><li>Burmese ruby weighing 2.04 carats</li><li>Diamonds weighing a total of approximately 2.30 carats</li><li>18 karat white gold</li><li>Total weight 7.82 grams</li><li>Size 7</li><li>Accompanied by GIA report no. GRS2023-071040, dated 5 September 2023, stating that the 2.04 carat ruby is of Burmese origin and shows no indication of thermal treatment and is of pigeon's blood color</li></ul>

White Gold, 2.04ct Burmese Ruby and Diamond Ring

Centering an oval cut Burmese <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> and accented by trillion cut diamonds.<ul><li>Burmese <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 3.02 carats</li><li>Diamonds weighing a total of approximately 1.10 carats</li><li>Platinum</li><li>Total weight 8.66 grams</li><li>Size 7</li><li>Accompanied by GIA report no. 2225566562, dated 27 September 2022, stating that the 3.02 carat sapphire is Burmese origin and shows No Indications of Heating</li></ul>

Platinum, 3.02ct Burmese Sapphire and Diamond Ring

Centering a cushion shaped Ceylon pink <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, accented by round brilliant cut diamonds.<ul><li>Ceylon pink <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 1.85 carats</li><li>Diamonds weighing a total of approximately 0.55 carat</li><li>18 karat white gold</li><li>Stamped with carat weights</li><li>Total weight 4.85 grams</li><li>Size 6¾</li><li>Accompanied by GIA report no. 6522625826, stating that the 1.85 carat pink <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Sri Lanka (Ceylon) origin and shows No Indications of Heating</li><li>Accompanied by one Sotheby's box</li></ul>

White Gold, 1.85ct Ceylon Pink Sapphire and Diamond Ring

Centering an oval-shaped Ceylon sapphire, surrounded by 14 round brilliant-cut diamonds.<ul><li>Sapphire weighing 7.60 carats</li><li>Diamonds weighing a total of approximately 1.70 carats</li><li>18 karat white gold</li><li>Total weight 11.29 grams</li><li>Size 6¾</li><li>Accompanied by GIA report no. 2185389244, dated 15 May 2017, stating that the 7.60 carat sapphire is of Sri Lankan (Ceylon) origin with no indications of heating</li></ul>

White Gold, 7.60ct Ceylon Sapphire and Diamond Ring

Centering an emerald cut Ceylon sapphire and accented by tapered baguette cut diamonds.<ul><li>Ceylon sapphire weighing 4.51 carats</li><li>Diamonds weighing a total of approximately 4.00 carats</li><li>Platinum</li><li>Total weight 10.44 grams</li><li>Size 6½</li><li>Accompanied by AGL report no. 1126919, dated 3 March 2023, stating that the 4.51 carat sapphire is Ceylon (Sri Lanka) origin and shows No Gemological Evidence of Heat</li></ul>

Platinum, 4.51ct Ceylon Sapphire and Diamond Ring

Featuring an emerald cut aquamarine, surrounded by round brilliant cut diamonds.<ul><li>Aquamarine weighing approximately 11.50 carats</li><li>Diamonds weighing a total of approximately 2.85 carats</li><li>18 karat white gold</li><li>Size 7¾</li></ul>

White Gold, 11.50ct Aquamarine and Diamond Ring 

Centering an oval shaped Ceylon pink sapphire, accented by pear and round brilliant cut diamonds.<ul><li>Ceylon pink sapphire weighing 4.05 carats</li><li>Diamonds weighing a total of 2.09 carats</li><li>18 karat white gold</li><li>Stamped with diamond weight</li><li>Total weight 7.52 grams</li><li>Size 5¼</li><li>Accompanied by AGL report no. 1129971, dated 20 March 2023, stating that the 4.05 carat pink sapphire is Ceylon (Sri Lanka) origin and shows No Heat Treatment</li></ul>

White Gold, 4.05ct Ceylon Pink Sapphire and Diamond Ring

Centering an oval cut Madagascar <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> and accented by trillion cut diamonds.<ul><li>Madagascar <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> weighing 1.32 carats</li><li>Diamonds weighing a total of approximately 0.25 carat</li><li>Platinum</li><li>Total weight 5.37 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 1226289271, dated 22 February 2022, stating that the 1.32 carat ruby is madagascar origin with No Indications of Heating</li></ul>

Platinum, 1.32ct Madagascar Ruby and Diamond Ring

Centering a cushion cut Mozambique <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> and accented by trapezoid cut diamonds.<ul><li>Mozambique <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> weighing 2.07 carats</li><li>Diamonds weighing a total of approximately 0.65 carat</li><li>Platinum</li><li>Total weight 6.05 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 1232476763, dated 17 January 2025, stating that the 2.07 carat ruby is Mozambique origin and shows no indications of heating</li></ul>

Platinum, 2.07ct Mozambique Ruby and Diamond Ring

Composed of an oval cut Burmese <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a>, accented by princess cut diamonds.<ul><li>Burmese ruby weighing 2.84 carats</li><li>Diamonds weighing a total of approximately 4.10 carats</li><li>Signed Sabrina</li><li>Platinum</li><li>Total weight 12.00 grams</li><li>Size 6¾</li><li>Accompanied by AGL report no. 1143138, dated 27 September 2024 stating that the 2.84 carat ruby is Burma (Myanmar) origin and shows No Heat Enhancement</li></ul>

Platinum, 2.84ct Burmese Ruby and Diamond Ring 

Composed of a square 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 trapezoid-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 2.69 carats</li><li>Diamonds weighing a total of approximately 1.00 carat</li><li>Platinum</li><li>Total weight 7.35 grams</li><li>Size 6¼</li><li>Accompanied by AGL report no. CS 71145, dated 9 November 2015, stating that the 2.69 carat emerald is Colombian origin and shows insignificant clarity enhancement</li></ul>

Platinum, 2.69ct Colombian Emerald and Diamond Ring

Composed of a square 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 tapered baguette-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 3.42 carats</li><li>Diamonds weighing a total of approximately 0.50 carat</li><li>18 karat white gold</li><li>Total weight 5.25 grams</li><li>Size 3¾</li><li>Accompanied by C. Dunaigre report no. CDC 2205684, dated 31 May 2022, stating that the 3.42 carat emerald is Zambian with indications of insignificant clarity enhancement</li></ul>

White Gold, 3.42ct Zambian Emerald and Diamond Ring

Centering an oval shaped Thai <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a>, accented by round brilliant cut diamonds.<ul><li>Thai <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> weighing 1.04 carats</li><li>Diamonds weighing a total of approximately 0.25 carat</li><li>18 karat white gold</li><li>Total weight 3.83 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 3525625960, dated 7 July 2025, stating that the 1.04 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/ruby" rel="noopener noreferrer" target="_blank">ruby</a> is Thailand origin and is Heated with Minor Residues</li><li>Accompanied by one Sotheby's box</li></ul>

White Gold, 1.04ct Thai Ruby and Diamond Ring

Centering a pear-cut diamond, accented by 23 calibré-cut sapphires and 59 round brilliant-cut diamonds.<ul><li>Pear-cut diamond weighing 2.09 carats</li><li>Sapphires weighing a total of approximately 0.65 carat</li><li>Round brilliant-cut diamonds weighing a total of approximately 0.25 carat</li><li>Platinum</li><li>Stamped with carat weight</li><li>Total weight 6.58 grams</li><li>Size 6½</li><li>Accompanied by GIA report no. 1226865748, dated 23 May 2023, stating that the 2.09 carat diamond is H color and SI1 clarity</li></ul>

Platinum, 2.09ct Pear Cut Diamond, Sapphire and Diamond Ring

Centering a cushion cut Burmese <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>Burmese <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 3.76 carats</li><li>Diamonds weighing a total of approximately 2.05 carats</li><li>18 karat white gold</li><li>Total weight 5.54 grams</li><li>Size 6¾</li><li>Accompanied by C. Dunaigre report no. GRS2024-040965, dated 2 May 2024, stating that the 3.76 carat sapphire is of "Royal Blue" color and Burmese origin with No Indication of Thermal Treatment</li></ul>

White Gold, 3.76ct Burmese Royal Blue Sapphire and Diamond Ring

Centering an oval-cut Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> with a round brilliant-cut diamond surround.<ul><li>Ceylon<a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank"> sapphire</a> weighing 5.75 carats</li><li>Diamonds weighing a total of approximately 1.40 carats</li><li>18 karat white gold</li><li>Total weight 7.75 grams</li><li>Size 5¾</li><li>Accompanied by GIA report no. 6194954653, dated 15 January 2019, stating that the 5.75 carat sapphire is of Sri Lankan (Ceylon) origin and shows no indications of heating</li></ul>

White Gold, 5.75ct Ceylon Sapphire and Diamond Ring

Centering a round brilliant cut diamond in a six prong solitaire setting.<ul><li>Diamond weighing 1.15 carats</li><li>Signed <a href="https://www.sothebys.com/en/buy/luxury/jewelry/tiffany-&amp;-co" rel="noopener noreferrer" target="_blank">Tiffany &amp; Co</a>. with serial number</li><li>Platinum</li><li>Total weight 4.96 grams</li><li>Size 4</li><li>Accompanied by a signed inner and outer box</li><li>Accompanied by <a href="https://www.sothebys.com/en/buy/luxury/jewelry/tiffany-&amp;-co" rel="noopener noreferrer" target="_blank">Tiffany &amp; Co</a>. diamond grading report stating that the 1.15 carat diamond is F color and VVS2 clarity with Faint Fluorescence</li><li>Accompanied by a copy of <a href="https://www.sothebys.com/en/buy/luxury/jewelry/tiffany-&amp;-co" rel="noopener noreferrer" target="_blank">Tiffany &amp; Co</a>. Retail Replacement Valuation</li><li>This item is final sale and not eligible for return</li></ul>

Platinum and 1.15ct Round Brilliant Cut Diamond Engagement Ring

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 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 two emerald 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 9.76 carats</li><li>Diamonds weighing a total of 1.45 carats</li><li>Platinum</li><li>Total weight 8.54 grams</li><li>Size 6¼</li><li>Accompanied by Gubelin report no. 25102162, dated 4 November 2025, stating that the 9.76 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Sri Lanka (Ceylon) origin and shows Indications of Heating</li><li>Accompanied by GIA report no. 2225170557, dated 1 December 2021, stating that the 0.71 carat diamond is J color and SI1 clarity with No Fluorescence</li><li>Accompanied by GIA report no. 5192069859, dated 2 February 2018, stating that the 0.74 carat diamond is J color and VVS2 clarity with No Fluorescence </li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 9.76ct Ceylon Sapphire and Diamond Ring

Composed of an oval-shaped sapphire, accented by oval and round brilliant-cut diamonds.<ul><li>Sapphire weighing 6.78 carats</li><li>Diamonds weighing a total of approximately 1.30 carats</li><li>Signed Jack Abraham</li><li>Platinum</li><li>Total weight 7.70 grams</li><li>Size 6</li><li>Accompanied by GIA report no. 2175038800, dated 4 March 2015, stating that the 6.78 carat sapphire shows no indications of heating</li></ul>

Platinum, 6.78ct Sapphire and Diamond Ring

Centering a cushion shaped Madagascar sapphire, accented by calibré cut diamonds.<ul><li>Madagascar <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 5.05 carats</li><li>Diamonds weighing a total of approximately 1.87 carats</li><li>Platinum</li><li>Total weight 5.87 grams</li><li>Size 6½</li><li>Accompanied by Gubelin report no. 25102160, dated 5 November 2025, stating that the 5.05 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Madagascar origin and shows No Indication of Heating</li><li>Accompanied by GIA report no. 2231367142, dated 19 August 2024, stating that the 5.05 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> shows No Indications of Heating</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 5.05ct Madagascar Sapphire and Diamond Ring

Composed of a cushion-shaped Ceylon sapphire accented by square emerald-cut diamonds.<ul><li>Ceylon sapphire weighing 5.81 carats</li><li>Diamonds weighing a total of approximately 0.71 carat</li><li>Platinum</li><li>Total weight 12.12 grams</li><li>Size 7</li><li>Accompanied buy GIA report no. 1206011897, dated 16 August 2023, stating that the 5.81 carat sapphire is of Sri Lanka (Ceylon) origin and no indications of heating</li><li>Accompanied by GIA report no. 14116165, dated 2 August 2005, stating that the 0.70 carat diamond is H color and VS2 clarity</li><li>Accompanied by GIA report no. 14116276, dated 3 August 2005, stating that the 0.71 carat diamond is H color and VS1 clarity</li></ul>

Platinum, 5.81ct Ceylon Sapphire and Diamond Ring

Centering a square cushion shaped Brazilian Alexandrite, accented by emerald and round brilliant cut diamonds.<ul><li>Brazilian Alexandrite weighing 2.28 carats</li><li>Diamonds weighing a total of approximately 0.90 carat</li><li>18 karat white gold</li><li>Total weight 7.19 grams</li><li>Size 8½</li><li>Accompanied by GIA report no. 6217042993, dated 14 July 2020, stating that the 2.28 carat Alexandrite changes from Dark Blue-Green in daylight to Purple in incandescent light, and is of Brazilian origin</li><li>Accompanied by one Sotheby's box</li></ul>

White Gold, 2.28ct Brazilian Alexandrite 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 round brilliant-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 3.11 carats</li><li>Diamonds weighing a total of approximately 0.50 carat</li><li>18 karat white gold</li><li>Total weight 4.96 grams</li><li>Size 6</li><li>Accompanied by C. Dunaigre report no. CDC 2311235, dated 6 November 2023, stating that the 3.11 carat emerald is Zambian origin and shows indications of insignificant clarity enhancement</li></ul>

White Gold, 3.11ct Zambian Emerald and Diamond Ring

Centering an emerald cut Zambian emerald, accented by round brilliant cut diamonds.<ul><li>Zambian emerald weighing 3.86 carats</li><li>Diamonds weighing a total of approximately 1.45 carats</li><li>Platinum</li><li>Total weight 12.43 grams</li><li>Size 7¼</li><li>Accompanied by AGL report no. CS 45181, dated 22 June 2011, stating that the 3.86 carat emerald is Zambian origin and shows No Clarity Enhancement</li></ul>

Platinum, 3.86ct Zambian Emerald and Diamond Ring

Centering an oval shaped Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a>, accented by calibré cut sapphires.<ul><li>Ceylon <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> weighing 5.05 carats</li><li>Diamonds weighing a total of approximately 0.15 carat</li><li>Platinum</li><li>Stamped with carat weight</li><li>Total weight 6.04 grams</li><li>Size 6½</li><li>Accompanied by Gubelin report no 25102161, dated 4 November 2025, stating that the 5.05 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Sri Lanka (Ceylon) origin and shows Indications of Heating</li><li>Accompanied by GIA report no. 2225763571, dated 7 January 2023, stating that the 5.05 carat <a href="https://www.sothebys.com/en/buy/luxury/jewelry/fine-jewelry/sapphire" rel="noopener noreferrer" target="_blank">sapphire</a> is Heated</li><li>Accompanied by one Sotheby's box</li></ul>

Platinum, 5.05ct Ceylon Sapphire, Sapphire and Diamond 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 

Of classic&nbsp;<a href="https://www.sothebys.com/en/buy/the-bridal-shop/engagement-rings" rel="noopener noreferrer" target="_blank">engagement ring</a>&nbsp;design, set with an asscher cut Fancy Vivid&nbsp;<a href="https://www.sothebys.com/en/buy/the-bridal-shop/engagement-rings/unique-solitaires/yellow-diamond" rel="noopener noreferrer" target="_blank">Yellow diamond</a>&nbsp;in yellow gold collet, flanked by 2 trilliant cut near colorless diamonds.<ul><li>Fancy Vivid&nbsp;<a href="https://www.sothebys.com/en/buy/the-bridal-shop/engagement-rings/unique-solitaires/yellow-diamond" rel="noopener noreferrer" target="_blank">Yellow diamond</a>&nbsp;weighing 1.53 carats</li><li>Trilliant cut diamonds weighing a total of approximately 0.20 carat</li><li>Platinum and 18 karat yellow gold</li><li>Total weight 8.00 grams</li><li>Size 6</li><li>Accompanied by one Sotheby's box</li><li>Accompanied by GIA report no. 2211007072, dated 25 June 2020, stating that the 1.53 carat diamond is natural Fancy Vivid Yellow color and SI2 clarity with No fluorescence</li></ul>

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