AN IMPORTANT AND SPECTACULAR RUBY AND DIAMOND RING

Set with a cushion-shaped ruby weighing 24.70 carats, within a surround of pear-shaped diamonds, the shank pavé-set with brilliant-cut diamonds of pink tint, size 7.

Accompanied by SSEF report numbered 80220, dated 11 June 2015, Gübelin report numbered 1003549, dated 12 March 2010 and AGL report numbered 8087505, dated 26 February 2018, each stating that the ruby is of Burmese origin, with no indications of heating; SSEF further stating that the colour of this ruby may also be called 'pigeon blood red' in the trade. Accompanied by sixteen GIA reports: Numbered 2165818900, dated 12 January 2015, stating that the diamond weighing 1.73 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 1179572285, dated 26 June 2014, stating that the diamond weighing 1.70 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 2186503599, dated 6 November 2014, stating that the diamond weighing 1.60 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 5161231991, dated 23 June 2014, stating that the diamond weighing 1.57 carat is D Colour, Flawless, with Excellent Polish and Symmetry. Numbered 2186632119, dated 15 December 2014, stating that the diamond weighing 1.56 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 6167653076, dated 15 December 2014, stating that the diamond weighing 1.52 carat is D Colour, Flawless, with Excellent Polish and Symmetry. Numbered 5186630314, dated 6 November 2014, stating that the diamond weighing 1.52 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry, Type IIa. Numbered 2151457543, dated 31 May 2013, stating that the diamond weighing 1.51 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 1189366739, dated 4 October 2014, stating that the diamond is 1.25 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 2176731558, dated 14 July 2014, stating that the diamond weighing 1.21 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 2176530168, dated 12 June 2014, stating that the diamond weighing 1.20 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 5186691616, dated 5 December 2014, stating that the diamond weighing 1.13 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry, Type IIa. Numbered 2155827798, dated 11 December 2014, stating that the diamond weighing 1.12 carat is D Colour, Flawless, with Excellent Polish and Symmetry, Type IIa. Numbered 2186204095, dated 24 September 2014, stating that the diamond weighing 1.09 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 2186061474, dated 25 September 2014, stating that the diamond weighing 1.09 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Numbered 2186646080, dated 8 November 2014, stating that the diamond weighing 1.07 carat is D Colour, Internally Flawless, with Excellent Polish and Symmetry. Accompanied by four GIA dossiers: Numbered 2186757675, dated 23 December 2014, stating that the diamond weighing 0.34 carat is D Colour, VVS1 Clarity. Numbered 5196049711, dated 19 January 2015, stating that the diamond weighing 0.31 carat is D Colour, VVS1 Clarity. Numbered 7196550611, dated 2 March 2015, stating that the diamond weighing 0.30 carat is D Colour, VVS1 Clarity. Numbered 2197490204, dated 25 February 2015, stating that the diamond weighing 0.30 carat is D Colour, Internally Flawless. Accompanied by SSEF Premium Appendix. Also accompanied by The Lotus Gold gemstone report numbered P-10093, dated 1 September 2014, stating that the ruby is natural of Burmese origin, with no enhancement, "Pigeon's Blood" distinction. Further accompanied by GRS report numbered GRS2010-031254 (Award No 542), dated 21 April 2010 and C. Dunaigre report numbered CDC 1002264, dated 14 March 2010, stating that the ruby is of Burmese origin, with no indications of heating. GRS further stating that the ruby is GRS type "pigeon's blood". C. Dunaigre also stating that the colour variety of the ruby is sometimes referred to as "Pigeon blood" in the trade. Please refer to reports and folio for further details. Metal tested as white and pink gold. Inscribed R24.70, PD4.38, D16-21.87, D8- 2.48 referring to the weight of ruby, diamonds of pink tint and diamonds respectively. Ruby is medium dark red of strong saturation, with typical inclusions, some surface reaching and minor blemishes when examined under 10x magnification, but hardly noticeable with unaided eye. Diamonds of pink tint are faint pink, mostly VS clarity as graded in the mount. Metal in very good condition. Overall in excellent condition.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.Certificates of Authenticity: Various manufacturers may not issue certificates of authenticity upon request. Sotheby's is not under an obligation to furnish the purchaser with a certificate of authenticity from the manufacturer at any time. Unless the requirements for a rescission of the sale under the Terms of Guarantee are satisfied, the failure of a manufacturer to issue a certificate will not constitute grounds to rescind the sale. Gemological Certificates and Reports: References in the catalogue descriptions to certificates or reports issued by gemological laboratories are provided only for the information of bidders, and Sotheby's does not guarantee and accepts no responsibility for the accuracy, terms or information contained in such certificates or reports. Please also note that laboratories may differ in their assessment of a gemstone (including its origin and presence, type and extent of treatments) and their certificates or reports may contain different results.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

附瑞士SSEF證書﹙編號80220，日期2015年6月11日﹚,瑞士Gübelin證書（編號1003549，日期2010年3月12日）及美國AGL證書（編號8087505，日期2018年2月26日）指紅寶石產地為緬甸，未經加熱處理。SSEF更指紅寶石呈「鴿血紅」色; 另附SSEF附錄信件。

附十六張美國GIA證書，指梨形鑽石重1.73至1.07卡拉，均D色，無瑕( FL ) 至 內部無瑕（IF）; 另附三張鑽石分析報告，指出鑽石重1.52, 1.13 及1.12卡拉為Type IIA類型。Type IIA鑽石以其純淨度見稱，幾乎不含氮元素，澄淨亮白。附四張美國GIA小證書，指梨形鑽石重0.34至0.30卡拉，均D色，內部無瑕（IF）至VVS1淨度。

附瑞士SSEF附錄冊子, 美國AGLJewelFolio^TM 及三張寶石鑑定報告。

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抹谷之皇

紅寶石作為幾百年來最珍貴的寶石之一，克拉單位價格一直極具競爭力， 其中緬甸紅寶石便是最被寵愛的寶石之一。

作為大自然的最閃耀的傑作，寶石的珍貴取決於其豐富的色澤和色調。紅寶石瑰麗紅艷，使人聯想到人類激烈的情感——熱情，慾望，愛，和憤怒。

東方世界對紅寶石有著與生俱來的崇拜之情，梵文中它被譽為 Ratnanayaka,也就是“尊貴寶石之首”。它“寶石之皇”的地位在公元前1110年的馬爾博得（Marbodus）的著作 『liber de lapidibus』中再一次被強調，被稱作“上帝創世紀時創造的十二寶石之最”。紅寶石常常被當作護身符來佩戴，人們對其通透明艷的紅色所具有的神秘力量深信不疑，令佩戴者聯想到力量，守護，以及好運。

幾百年來，緬甸一直是高質量紅寶石的重要產地。緬甸北部抹谷礦的地理結構給紅寶石的形成提供了最優秀條件。減少了鐵元素的稀釋，緬甸紅寶石的明艷紅色和熒光色調來自於土地中氧化鉻元素，這造就了它在燈光下通透的光彩煥發。色澤是紅寶石價值的決定要素之一，高質量的抹谷紅寶石被譽作“鴿血紅”，特指其強烈的色彩飽和度，未經加熱和優良品質。 這裡的品質包括紅寶石的淨度，透明度，和顏色均勻度。

隨著全世界各地，包括緬甸，的礦石產地寶石生產量的下降，任何大於5克拉的紅寶石的出現對於寶石收藏家來說都是值得慶賀。此次拍品1779極為珍貴的24.70克拉紅寶石色澤飽和明亮，是自然界不可多得的珍寶。