• 橢圓形天然「斯里蘭卡」變色藍寶石重9.91卡拉
• 方形鑽石共重約3.35卡拉
• 鉑金鑲嵌
指環尺寸：6½

Colour and Clarity: According to GRS report, the colour-changing sapphire is natural, of Ceylon origin, with no indication of thermal treatment. Please refer to the report for details. In our opinion, the colour-changing sapphire shows a noticeable colour-change effect, from medium deep blue colour in daylight to medium purple colour in incandescent light, eye clean. Upon 10x loupe, there are two feathers on pavilion and a few nicks on girdle, not seen to naked eyes. Diamonds are about E to F colours, VS clarity. Condition: Platinum ring mount, in very good 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.
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GRS證書（編號GRS2003-03355，日期2003年3月11日）• 變色藍寶石產地為斯里蘭卡 • 未經加熱處理 • 白光下呈藍色，黃光下呈紫色